Metalmac - Metal Fabrication and Welding in Sydney NSW

Metalmac is a Custom Metal fabrication and Welding Workshop based the the Hills District of North Western Sydney. We specialize in small to mid-sized custom solutions for our clients which includes just about any domestic steel fabrication job as well as equipment, benches, storage and maintenance for larger manufacturing and industrial facilities.

Metalmac owner David McNeice, has had a life long interest in building and creating useful steel structures and designs for himself and his peers. Being the go-to steel fabricator among his friends and colleagues for many years and after becoming tired of a professional career behind a desk, David made the decisions a few years ago to pursue his passion full-time and has been forging a living from steel ever since.

This post first appeared on https://www.metalmac.com.au/

Hills District MetalFabrication Expert

Need A Custom Metal Fabricator in The Hills?

We usually find that most people don't know where to look when they are faced with unusual engineering problems but expert steel fabricator David McNeice has been able to forge a career out of helping people with the same.

Customised fabrications are not just limited to larger industrial facilities and manufacturing plants, but could also be for domestic purposes such as security gates and fences, trailer modifications, garage racking, machinery maintenance or any other projects that involve shaping, bending, cutting, machining or welding steel.

Our Fabrication Project Examples

[caption id="attachment_1495" align="alignnone" width="500"] Welding a customized kitchen table leg structure[/caption] [caption id="attachment_1494" align="alignnone" width="500"] The finished kitchen table leg fabrication installed[/caption]Read Full Article here: Hills District MetalFabrication Expert. as seen on www.metalmac.com.au

Welding Service

LOOKING FOR A PROFESSIONAL WELDING SERVICE?

In reality, most people could pick up a welder and crudely fuse two pieces of metal together, however, to do it precisely, structurally sound and visually appealing is an art that takes years of practice and experience.

Based in The Hills District and Servicing the greater Sydney Metropolitan area, Metalmac owner David McNeice left behind a successful professional career sitting behind a computer to pursue his passion as a Welder and Metal Fabricator. Being able to express his creative side through solving engineering problems and creating effective solutions with his technical know-how is something David finds much more rewarding than his previous employment.

MOBILE ONSITE WELDING

One of our core services at Metalmac is providing a mobile onsite welding service to the greater Sydney metropolitan area. In many cases, this is to service larger industries that have extensive onsite maintenance schedules for both heavy equipment and infrastructure but could also be on the local domestic level services structures such as gates, fences, trailers or anything else made of structural steel.

Metalmac owner David McNeice repairing the security gate at a well known Sydnye industrial center

Welding repairs to the fire sprinkler system at a local manufacturing facility

TYPES OF WELDING

MIG

Metal Inert Gas Welding or metal Active Gas Welding is one of the most commonly used techniques in industrial welding practices as it is relatively fast and efficient when compared to some of the older practices.

A MIG welding torch has a thin wire electrode that feeds from a roll on the machine itself. The speed at which the wire is feed can be controlled by the operator as well as the desired power output, amperage. Also feed from the welding gun is a shielding gas that helps prevent oxidation and makes a better quality weld. Atmospheric gases can cause porosity and fusion defects, so the use of argon, helium, carbon dioxide or a mixture of all 3 is used to mitigate this issue.

The advantages of using the MIG is it is easy to use and surface preparation is not as important when compared to other welding processes. The disadvantages are that it gives up a small amount of control when compared to the TIG.

TIG

Tungsten Inert Gas Welding, sometimes referred to as GTAW (Gas Tungsten arc welding) is commonly used on non-ferrous metals such as copper, magnesium and aluminium, but is also the preferred method of welding thin pieces of stainless steel and other iron-based metals.

The big advantage of TIG welding is greater control over the welding process, giving the operator a better chance at creating stronger and higher quality welds.

The disadvantages are the process is slower which adds more time to a job and this welding technique takes an experienced operator. Learning this method of welding is a complex art that can take a good while for the operator to become proficient in.

Stick Welding

Often considered ‘the old way’ of doing things a stick welder is the most basic of welding machines using a stick rod as the electrode, which is also the filler metal that helps to fuse the metals together. There are no protective gases used in stick welding.

Generally, stick or arc welding is still a very good option on heavier structural steels and thicker pieces of metal. When it comes to welding sheet metal or other thin pieces then this is not the best option.

A stick welder is very easy to use and very cheap to purchase.

Plasma Arc Welding (PAW)

The key differences between GTAW and PAW are the electrode is positioned in the body of the torch so the plasma arc is separated from the shielding gas. The gas plasma is then forced through a fine bore copper exit orifice on the torch at high velocities. This high-velocity gas exiting the nozzle is suitable for both welding and cutting purposes not unlike an oxy torch.

The key difference between plasma arc welding and oxy-acetylene welding is the plasma arc is around 28,000 degrees Celcius. By comparison, an oxy-acetylene flame is approximately 3150 degrees Celcius and a normal welding arc is around 10,000 degrees Celcius.

Gas Welding

This is another welding process becoming less and less used as time goes by due to the effectiveness of the TIG. This process usually refers to the use of oxygen and acetylene mixed together in the welding torch and this flame is used to create heat on the job surface. A rod is then applied to the heated joint which then melts to provide the filler metal and the joint strength.

WELDING TOOLS & EQUIPMENT

Luessink welding bench

welding face masks

welding gloves

BOC Welder

WELDING VARIOUS TYPES OF MATERIALS

Aluminium

Stainless Steel

steel

Sheet Metal

The article Welding Service first appeared on Metalmac

Metalmac
46 Hutchins Cres, Kings Langley NSW 2147
0499 499 455
david@metalmac.com.au
https://www.metalmac.com.au/metal-fabricator/hills-district

What is the Process of Sheet Metal Fabrication?

Fabrication is the process of changing something from one form to another form. Of the various forms of fabrication, sheet metal fabrication is one of the most useful types.

It is believed that metal was discovered even before Man had started to read and write. It was at this phase that human beings started using metal to create rudimentary tools and weapons such as spears and arrowheads. Since then, metal fabrication has moved a long way into metal forming, metal bending, metal cutting, the laser application and much more – increasing its usage far beyond the domain of basic tools and weapons. 

 

Sheet Metal Fabrication

Sheet metal fabrication

Most metal types are malleable, which means they can be molded into shapes. When metal is shaped into flat and thin pieces, it is termed as sheet metal. The best thing about sheet metal fabrication is that these metal sheets can be then bent and cut into a number of shapes and sizes. They can even be of altering thickness. We can also refer to the thickness of sheet metal as “gauge”.

Sheet metal is not only available in flat pieces but also in coiled strips. Generally, sheet metal is made from brass, aluminum, tin, copper, titanium, nickel and steel. Sometimes silver, gold, and platinum can also be used for decorative purposes.

We use sheet metal fabrication in making products like building materials, airplane wings, equipment for food processing, car bodies and many other things.

There are many processes of sheet metal fabrication

As mentioned above, there are different processes involved to convert raw material into useful items. Some of the most important processes for converting raw material to useful forms are mentioned below:

#1. Cutting

Cutting is the first step to perform for sheet metal manufacturers. There are a number of ways in which metal sheets can be fabricated or processed. Laser beam technology is the newly launched method for cutting. There is no room for any mistake in cutting metal with high beams of laser because it has particular computerized settings that completely control the environment.

#2. Forming

The second step in sheet metal fabrication is forming. In this part, once the metal is cut, it is imprinted into the required form or figure. Usually, the techniques used for forming are rolling and sloping, stamping, welding, winding and hitting. The process of rolling involves using the roll stand to bend the metal and it is manipulated by hand.

#3. Bending

Bending is the method that is used to deform the metal by employing die sets. When we bend the sheet metal its inner metallic surface is compressed and the outer surface gets stretched. The perfect stretch is made possible by bending the metal. This process requires accurate functioning with bending deduction or bending allowances in order to get immediately the right twist.

#4. Stamping

The process of forming a blank sheet metal into the required shape by applying force or high pressure is known as the stamping process. Metal stamping needs nonstop alternatives to the stamping designs and motions that must be achieved. Stamping involves a deep-drawn method in which great energy is leveraged on the raw material to achieve a seamless finish.

These are a few of the methods that are frequently used for sheet metal fabrication in manufacturing industries. These are some simple ways of sheet metal fabrication. This process of metal fabrication is not only used by metal manufacturing industries but also by automobile industries to prepare car bodies and many other parts. Some of the electronic companies also employ metal fabrication. Moreover, if you want to know more then click here.

Article Source:  https://getadvanceinfo.blogspot.com/2014/12/what-is-process-of-sheet-metal-fabrication.html