Aluminium Balustrade Extrusions Tip

Aluminum is one of the most used metals in today’s society – Aluminium Balustrade Extrusions in Tip  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Alspec Aluminium Catalogue

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Extrusion Rail it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Windows Cape Town

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Windows Cape Town

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Extrusions For Glass the drawing process is skipped.

Aluminium Windows South Africa

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminium Balustrade Extrusions in Tip?

Aluminium Sections Catalogue

When purchasing your aluminum profile system, it is important to use aluminum profile systems that represent the latest in technological progress. They are available and many have highly competitive prices.

What is an aluminum profile system?

Aluminum profile systems are extruded shapes (tubing, bar stock, angles, rods, ducts, channels, air supply systems, pipe racks, etc.) made from aluminum. Extrusion is a process by which different aluminum shapes are formed from a cylindrical hydraulic press. The press forces the aluminum through the die and the extruded aluminum results in the desire shape.

What is the history of aluminum extrusions?

Patented in 1970, the extrusion process was first used to make lead pipes. Lead, copper, iron, and steel have a much longer history than aluminum, which was first identified in 1807.

At first aluminum was considered more precious than gold. However, with the advent of the smelting process and the modern hot extrusion process in the 1880's, it became extremely affordable. Aluminum, the metal most used for extrusion, can now be used with both hot and cold extrusion processes.

What are the benefits of an aluminum profile system?

There are many reasons why an aluminum system is preferred over other tooling. Some of the most important reasons are that it is not only affordable, but also durable, lightweight, and corrosion resistant - and many of the components are reusable, thus lowering the cost.

Respected manufacturers of aluminum profile promise shortened lead times, which is very important to most customers. This is possible because fewer tools are required to produce the final product, the designs are simple, and no welding or painting is required.

These manufacturers usually have a large stock of shapes and finishes on hand. If a customer needs a shape different that what is normally carried, that shape can be custom-made.

What are the uses of aluminum profile systems?

After World War II, when aluminum extrusions were used in the manufacturing of aircraft and other military uses, new uses were quickly found to be applicable for other industries. Aluminum extrusion is even used in the space industry.

If you are not familiar with the uses of aluminum profile in today's world, you might be surprised to know that they are used in computers, fixtures, everyday household appliances, home furnishings and interior design, power tools, and window frames.

In the world of manufacturing, aluminum systems are used in conveyor frames, fixtures, construction, protective barriers, work tables, electrical components, work bins, car radiators, automobile body and frame components, drive shafts and cylinder liners, and in special and series machines.

Aluminum Folding Doors - Add Elegance by Choosing Secure Aluminium Doors and Windows for Your Home

Aluminium Window Frames For Sale

Glass doors are a great choice for both homes and businesses, and offer a great many advantages. In this article I'm going to look at specifically what those advantages are, as well as covering possible disadvantages which you should be aware of.

One of the most obvious and appealing benefits of doors made from glass is the fact that they allow light to pass through. For doors which open to the outside there is the benefit of being able to enjoy natural sunlight entering the room. Not only does this sunlight look and feel much more pleasant than artificial light, but it also helps to reduce the need for that artificial lighting, lowering costs as well as representing a greener alternative.

But even in cases where the door is not an exterior one, a glass door still allows light to pass from one room to the other, not only creating a visually more attractive space, but also a more practical one, since there are fewer shadows and darker areas, maximising the efficient use of the room.

One of the possible disadvantages of course with glass is that it does not usually permit privacy. Clearly this is why very few bathrooms have doors made from glass! But there is a way in which you can enjoy the benefits of a glass door being able to allow light to pass through it whilst also enjoying a certain amount of privacy. Frosted glass, or even coloured opaque glass can be used for both partitions and doors to create an attractive feature which also provides the privacy required.

Another benefit of glass as a material for use in doors and partitions is that it is incredibly durable and extremely easy to keep clean. Glass does not rust, or corrode, it is not susceptible to woodworm, and it doesn't collect dust. All that is necessary to keep the glass door or glass partition looking clean and attractive is to give it an occasional wipe with a cloth and some glass cleaner. This is ideal for both businesses and homes.

One of the disadvantages of glass doors is that they are more liable to crack or break if they receive a very sharp knock or heavy blow. However, such a blow would probably cause significant damage to any door, and as they're made of toughened glass, glass doors and partitions are more than tough enough to cope with everyday use, and should not shatter or break revealing sharp edges should a seriously hard knock cause any damage.

Modern digital printing now also enables glass doors to be patterned or to have designs added. This is less useful for homes, but for businesses and commercial properties it provides the opportunity to have company logos or other relevant information included on the glass.

With a choice of colours and many different types of frameless glass doors, including fixed, hinged, sliding and folding systems, there are many benefits worth considering, both for the home and for business environments.

Aluminium Window Frames Details

https://ferngully.co.za/ratings-2/

Fern Gully Have Aluminium Extrusion List

Aluminium Balustrade Extrusions Sandton

Aluminum is one of the most used metals in today’s society – Aluminium Balustrade Extrusions in Sandton  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Windows

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Glazing Extrusions it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Window Frames Catalogue

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Alspec Aluminium Catalogue

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Cabinet Extrusions the drawing process is skipped.

Aluminium Window Frames Details

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminium Balustrade Extrusions in Sandton?

Aluminium Window Sections Catalogue

Glass doors are a great choice for both homes and businesses, and offer a great many advantages. In this article I'm going to look at specifically what those advantages are, as well as covering possible disadvantages which you should be aware of.

One of the most obvious and appealing benefits of doors made from glass is the fact that they allow light to pass through. For doors which open to the outside there is the benefit of being able to enjoy natural sunlight entering the room. Not only does this sunlight look and feel much more pleasant than artificial light, but it also helps to reduce the need for that artificial lighting, lowering costs as well as representing a greener alternative.

But even in cases where the door is not an exterior one, a glass door still allows light to pass from one room to the other, not only creating a visually more attractive space, but also a more practical one, since there are fewer shadows and darker areas, maximising the efficient use of the room.

One of the possible disadvantages of course with glass is that it does not usually permit privacy. Clearly this is why very few bathrooms have doors made from glass! But there is a way in which you can enjoy the benefits of a glass door being able to allow light to pass through it whilst also enjoying a certain amount of privacy. Frosted glass, or even coloured opaque glass can be used for both partitions and doors to create an attractive feature which also provides the privacy required.

Another benefit of glass as a material for use in doors and partitions is that it is incredibly durable and extremely easy to keep clean. Glass does not rust, or corrode, it is not susceptible to woodworm, and it doesn't collect dust. All that is necessary to keep the glass door or glass partition looking clean and attractive is to give it an occasional wipe with a cloth and some glass cleaner. This is ideal for both businesses and homes.

One of the disadvantages of glass doors is that they are more liable to crack or break if they receive a very sharp knock or heavy blow. However, such a blow would probably cause significant damage to any door, and as they're made of toughened glass, glass doors and partitions are more than tough enough to cope with everyday use, and should not shatter or break revealing sharp edges should a seriously hard knock cause any damage.

Modern digital printing now also enables glass doors to be patterned or to have designs added. This is less useful for homes, but for businesses and commercial properties it provides the opportunity to have company logos or other relevant information included on the glass.

With a choice of colours and many different types of frameless glass doors, including fixed, hinged, sliding and folding systems, there are many benefits worth considering, both for the home and for business environments.

Aluminum Frames Vs PVC Or Wood - Are They Worth the Extra Cost?

Aluminium Window Frames Details

Greenhouse kit frames may be made of galvanized steel pipe, aluminum, plastic or wood. It is very important when considering purchasing a greenhouse to look at the type of frame it is constructed of. There are also many different grades of these materials used. With the steel pipe frame you not only have to consider the size of the tubing, but also the spacing of the tubing. Naturally, closer spacing of the bows will result in a stronger frame. This is also true of aluminum frames. The thickness of the aluminum, the spacing and the extra supports will all determine the strength. What type of wood is being used is very important also.

Typically the prices going from low to high will be as follows.

1. Plastic frames
2. Lightweight Aluminum Frames
3. Pipe Frames
4. Wood Frames
5. Heavy Duty Aluminum Frames

Some of these such as the wood frames will require maintenance to keep up. The rest of the frame types are typically maintenance free.

Many consumers simply look at size, shape and price and do not consider that at some point they will probably want to add some accessories such as circulating fans, ventilation systems, hanging heaters, misting or fogging systems, etc. to their greenhouse. With plastic frames it is virtually impossible to add any accessories without building a frame to mount the accessories to. Many times these frames simply are not heavy enough to support even a hanging basket. Usually with wood and pipe frames the strength is there, but you will still need to do some extra framing out to mount the accessories. There are also some lighter weight aluminum frame greenhouse kits which will require additional framing to mount your accessories. Most quality aluminum framed greenhouses will offer a channel where bolts will slide to the exact location you desire to put your accessories. Usually this type of frame will even make it possible to add a wire shelf above your benches for extra space.

These are all just general guidelines. It is best to investigate each greenhouse kit on an individual basis.

Aluminium Windows

https://ferngully.co.za/ratings-2/

Fern Gully Have Aluminium Extrusion List

Aluminium Balustrade Extrusions Pretoria

Aluminum is one of the most used metals in today’s society – Aluminium Balustrade Extrusions in Pretoria  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Window Frames For Sale

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Structural Aluminum Extrusion it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Windows Pretoria

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Sections Catalogue

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Extrusion Profiles the drawing process is skipped.

Aluminium Windows Pretoria

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminium Balustrade Extrusions in Pretoria?

Aluminium Window Sections Catalogue

Having lived with all three types of windows and patio doors in the past three years, I feel that I am an 'expert user' when it comes to opening and closing in each medium: wood, pvc and aluminium.

First, the novice's choice: wood. It looks great, feels warm, can be stained a medium or dark shade or painted any colour of the spectrum. It's an age-old medium so what can go wrong? The main problems are humidity and strong sunlight.

There are varying qualities of wood on offer, depending on your budget. A moderately-priced pair of French doors on a south-facing house wall suffered a degree of warping, creating gaps that had to be plugged each winter in an attempt to keep the cold draughts at bay whereas, in warmer damp circumstances, the door had to be forcibly pushed and pulled back into its aperture.

Two good summers and the four coats of varnish had virtually vapourised, revealing cracking wood that needed nourishing and protecting from the next couple of years' weather.

Second, the double-glazing salesman's special offer: PVC. Overpriced by a couple of well-known companies who then discount by 50% if you hesitate, PVC is also available in varying qualities. At the higher end of the market, the frames are often reinforced with metal.

Generally with more features than wooden doors and windows, PVC should not require much more than a quick wipe with a damp cloth for the first few years and its looks are therefore easier to maintain. We have some PVC French Doors from the lower price range. As value for money, they are quite good but an element of trust is lacking in terms of defence against determined intruders. They feel floppy and flimsy when opening and closing and there's a knack to locking and unlocking them successfully. We have older PVC doors from the higher price range and, whilst more sturdy (reinforced with metal) they are looking a tad ratty.

The PVC windows screeched with wind whistling through, like semi-detached tinnitus.

Thirdly and finally, the long term investment: powder-coated aluminium frames. If you are fed up with sanding down wooden frames and considering the easy option of PVC or coated aluminium, particularly for a wide opening with multi-folding doors. Consider whether PVC is up to the task of substituting for the wall of your house.

Stand back and look through closed doors at the difference between PVC and aluminium - it is very noticeable. With PVC, there are windows of scenery between wide areas of plastic (two frames together might measure between 8 and 10 inches, 20 to 25cms) so the doors block up to 20 per cent of the potential view and light-source.
 
Aluminium frames on bifolding doors from manufacturer SunSeeker Doors, being stronger, are only about 2 inches or 5 centimeters. The profile is also considerably smaller so the doors use far less space than PVC or wood when folded back. For those who want color, several options are available to order, the most popular (after standard white) are: Grey, blue, green, brown and silver. Aluminium Frames are more expensive than cheap PVC or wood but prices are comparable with the better quality PVC doors. Is aluminum worth the extra cost? If you want the "wow" factor, strength, longevity, maximum living space and the most panoramic view,Yes.

Get the Most Out of Aluminum Railings

Aluminium Window Sections Catalogue

Aluminium Extrusion process is undertaken by several companies today which offer extruded products to buyers. The extrusion process is generally utilized in production. It is used to create parts of homogeneous cross-sections and is done by squeezing the material all the way through an outlet under high-pressure. Aluminium extrusions are popular all over the world since the metal is easily available on the earth's crust. Besides, aluminium is widely used in several applications and it has numerous advantages as well.

Companies manufacturing extruded aluminium products offer extruded aluminium profiles, systems and finished products and semi-manufactured components. Enterprises manufacturing aluminium products are generally in search of products that can fulfill the needs of the customers. All through the manufacturing process, manufacturers must give close attention to quality, performance, economy and precision. Aluminium extrusion is generally simple, however, it might turn complex in case the demand of customers for extruded products differ. There is an assortment of aluminium extrusion profiles today in the market and people are keener to get the best product for any particular industry. If you are in the automobile industry and are in need of aluminium extruded products you must look for certain shapes that are just the apt for your industry. A company manufacturing aluminium extruded products manufacture according to the supply orders and are capable in offering all kinds of shapes. These extruded products are fabricated and customized and are unique according to needs.

There are several advantages to aluminium extrusion.

Aluminium is a widely available metal and through constant cross section several parts can be manufactured in the most reasonable way. The process of extrusion allows taking advantage of properties of aluminium and it expands. Thus, this manner indeed versatile as you can manufacture several shapes in just a simple process.

However, you need high-tech machinery for the process and you can produce shape indefinitely without spending a fortune in preparation costs. Hence, the process is totally economical. Roll-forming dies, in case you have heard about them they are costlier than extrusion die.

Aluminium extruded products have longer life than items made from steel or plastic. Besides, extrusion is meant to be the most environmentally friendly and economical solution. Aluminium as a metal even when not compared for its aluminium extrusion profiles and to weight properties. Even though it is light weight it has good strength. Aluminium is used for thermal and electrical conductivity. It is not only affordable it is also flexible in terms of shapes and size. It can adept to high temperatures and are thus preferred as utensils when used for heating water or boiling rice. It is corrosion resistant and can offer you good service over years. If you want you can easily recycle the metal. After steel all over the world aluminium is the most trusted and used metal. It can be fabricated to several shapes right from sheets, geometric shapes, to foils, tube, rod and wire.

So, if you are out there looking for aluminium extrusion profiles you can trust the process with closed eyes.

Aluminium Windows Cape Town

 


https://ferngully.co.za/ratings-2/

Fern Gully Have Aluminium Extrusion List

Aluminium Balustrade Extrusions Most Popular

Aluminum is one of the most used metals in today’s society – Aluminium Balustrade Extrusions in Most Popular  it can be found across a number of industries, such as construction and commercial, and in a number of applications, such as beverage cans and appliances. When choosing a manufacturer of aluminium extrusion for supplying the metal that you use in your workplace, however, it is important that you carefully consider which one will be best for your needs.

Aluminium Windows

The manufacturer will begin by removing the aluminium from deep within the earth’s crust (either as bauxite ore or feldspar). Often, the Bayer’s method, Wohler’s method or Hall Heroult method is chosen to remove the metal in its molten form. It is then hardened and moulded into whatever shape the manufacturer desires. When the aluminium is extracted from the earth in its solid form, Aluminum Extrusions Retail it will be passed through a number of mechanical processes that are designed to give the metal its desired shape. These processes include: rolling, drawing, forging, spinning, piercing and extrusion.

Aluminium Window Frames For Sale

Regardless of whether aluminium has been found in its molten or solid form, the manufacturer will then pass it through either a hot working or cold working process to prepare it for their customers. When using the hot working process (the most popular of the two), a billet will be heated to a temperature of over 79 degrees Celsius, which will allow the aluminium to be easily distorted and placed into its desired shape.

Aluminium Sections Catalogue

The reason for the popularity of the hot working process over the cold working one can be fully realized when you compare aluminium extrusion to squeezing toothpaste out of its tube. It is much easier to extrude the metal when it is malleable, meaning that it must have been heated to a certain temperature.

Finally, the aluminium will pass through an extrusion and drawing process that runs almost parallel to each other. This is the final step in the whole extrusion process and is the step that gives the metal its entire shape. Deep drawing, for example, is used give the metal a cup, conical tapered, cylinder and seamless tube shape. For less curved shapes, Aluminum Extrusion Framing the drawing process is skipped.

Alspec Aluminium Catalogue

Once you are satisfied with the processes and methods utilized by a potential manufacturer of aluminium extrusions, you can begin submitting your orders with them. If, after your first delivery, you are still satisfied with the manufacturer based on the promptness of the order being filled and the quality of the aluminium that you receive, you can continue the relationship.

Aluminium Balustrade Extrusions in Most Popular?

Aluminium Windows South Africa

Aluminum sliding doors are located in various rooms of a building. This could be used as terrace or patio doors leading into the garden. Other places could be on first floor leading into the balcony from a family room upstairs or bedroom. The are different types used, one side fixed and other sliding and or two sliding panels and a fixed one. The room and size of opening determines which type to use. This also determines the glazing to be put.

When ready to fix an aluminum sliding door, whether due to replacement or anew, first measure the opening. Ensure that all railings , rollers, glazing are all in place. Line the opening smooth with plaster and check sides, floor and top. Ensure corners are square, jambs are plumb while top and bottom level. Fix the frame work by screwing into the reveals and jambs. Hacking the bottom part slightly recesses the framework for it to be flush with floor.

After the aluminum sliding door framing is in place, assemble the fixed part. Take the glazing and tie the frame round, it while inserting the rubber lining. Slide this panel and screw it into the frame firmly. Start sliding panel assembly and fix glazing as before, insert the rollers and push into the guiders. Let the panel roll along to the fixed side. screw adjust the wheels by pushing them up or down. Clean debris on guiders and remove dust.

Now that aluminum sliding door is assembled, place correctly each panel. Ensure that the fixed panel is on the outer guider and sliding part in the inside one. This prevents draught during windy days. Add the linings on the grooves provided to stop shaking during windy days or when opening. Add the locking latch and test the mechanism when inside and outside the room. Fix the alarm system if provided on moving panel and frame,then clean the door.

How to Choose Quality Aluminum Windows and Doors

Aluminium Sections Catalogue

High strength aluminium alloys.

The origin of aluminium alloys in aircraft construction started with the first practical all-metal aircraft in 1915 made by Junkers in Germany, of materials said to be `iron and steel'. Steel presented the advantages of a high modulus of elasticity, high proof stress and high tensile strength. Unfortunately these were accompanied by a high specific gravity, almost three times that of the aluminium alloys and about ten times that of plywood. Aircraft designers during the 1930s were therefore forced to use steel in its thinnest forms. To ensure stability against buckling of the thin plate, intricate shapes for spar sections were devised.

In 1909 Alfred Wilm, in Germany, accidentally discovered that an aluminium alloy containing 3.5 per cent copper, 0.5 per cent magnesium and silicon and iron, as unintended impurities, spontaneously hardened after quenching from about 480°C. The patent rights of this material were acquired by Durener Metallwerke who marketed the alloy under the name Duralumin. For half a century this alloy has been used in the wrought heat-treated, naturally aged condition. The improvements in these properties produced by artificial ageing at a raised temperature of, for example, 175°C, were not exploited in the aircraft industry until about 1934.

In addition to the development of duralumin (first used as a main structural material by Junkers in 1917) three other causes contributed to the replacement of steel by aluminium alloys. These were a better understanding of the process of heat treatment, the introduction of extrusions in a wide range of sections and the use of pure aluminium cladding to provide greater resistance to corrosion. By 1938, three groups of aluminium alloys dominated the field of aircraft construction and, in fact, they retain their importance to the present day. The groups are separated by virtue of their chemical composition, to which they owe their capacity for strengthening under heat treatment.

The first group is contained under the general name duralumin having a typical composition of: 4 per cent copper, 0.5 per cent magnesium, 0.5 per cent manganese, 0.3 per cent silicon, 0.2 per cent iron, with the remainder aluminium. The naturally aged version was covered by Air Ministry Specification DTD 18 issued in 1924, while artificially aged duralumin came under Specification DTD 111 in 1929. DTD 111 provided for slight reductions in 0.1 per cent proof stress and tensile strength.

The second group of aluminium alloys differs from duralumin chiefly by the introduction of 1 to 2 per cent of nickel, a high content of magnesium and possible variations in the amounts of copper, silicon and iron. `Y' alloy, the oldest member of the group, has a typical composition of. 4 per cent copper, 2 per cent nickel, 1.5 cent magnesium, the remainder being aluminium and was covered by Specification DTD 58A issued in 1927. Its most important property was its retention of strength at high temperatures, which meant that it was a particularly suitable material for aero engine pistons. Its use in airframe construction has been of a limited nature only. Research by Rolls-Royce and development by High Duty Alloys Ltd produced the `RR' series of alloys. Based on Y alloy, the RR alloys had some of the nickel replaced by iron and the copper reduced. One of the earliest of these alloys, RR56 had approximately half of the 2 per cent nickel replaced by iron, the copper content reduced from 4 to 2 per cent, and was used for forgings and extrusions in aero engines and airframes.

The third and latest group depends upon the inclusion of zinc and magnesium and their high strength. Covered by Specification DTD 363 issued in 1937, these alloys had a nominal composition: 2.5 per cent copper, 5 per cent zinc, 3 per cent magnesium and up to 1 per cent nickel. In modern versions of this alloy nickel has been eliminated and provision made for the addition of chromium and further amounts of manganese.

Aircraft structural aluminium.

Of the three basic structural materials, namely wood, steel and aluminium alloy, only wood is no longer of significance except in laminates for non-structural bulkheads, floorings and furnishings. Most modern aircraft still rely on modified forms of the high strength aerospace aluminium alloys which were introduced during the early part of the 20th century. Steels are used where high strength, high stiffness and wear resistance are required. Other materials, such as titanium and fibre-reinforced composites first used about 1950, are finding expanding uses in airframe construction.

Aluminium Windows South Africa

 


https://ferngully.co.za/ratings-2/

Fern Gully Have Aluminium Extrusion List