metal fabrication welding

 

 

EXPERIENCED.

 
  G&H has a very experienced welding team with decades of combined welding experience.  

METAL FABRICATION - WELDING

G&H offers a variety of welding services supported by advanced welding equipment and skilled craftsmen. We are ISO and AWS certified with many years of experience in both Gas Metal Arc Welding/Metal Inert Gas (MIG Welding) and Gas Tungsten Arc Welding (GTAW)/Tungsten Inert Gas (TIG Welding). The MIG and TIG welding processes grant our highly skilled operators greater control for stronger, more consistent welds.

SPECIALISTS IN MIG AND TIG WELDING

G&H has a large in-house capability for aluminum, carbon steel, stainless steel, cast iron, and bronze welding. We have the ability to handle stock up to 40’ long, 12’ square, with a minimum thickness of .0030” and we have the equipment to handle pieces up to 20,000 pounds. We can build custom fixtures for production and no job is too small. G&H provides field fabrication services for clients who need welders on-site for their projects. Our highly experienced team of welding technicians can certify to any standards required.

G&H CUSTOMERS BENEFIT FROM FULL SERVICE CAPABILITIES

Because G&H is a full service contract manufacturer, our customers get the benefit of quick turn-around across their complete project. We offer a full range of precision machining and metal fabrication services including CNC lathe machining, CNC mill machining, laser cutting, welding, forming, bending and punching, metal stamping, tool and die, and Wire EDM. In addition to contract manufacturing, we also provide other services to our customers including material sourcing, material documentation, metal finishing, project management, inspections and delivery. This “one-stop-shop” capability allows us to expedite critical turnkey projects and provide specialized customer services.

WHAT IS MIG WELDING?

Metal Inert Gas (MIG) welding combines two metals by using a filler wire with a current to produce the electrode. Inert gas is also used simultaneously to protect the weld from any air contaminants. MIG welders use a trigger to dispense the wire that is fed from a spool to the weld joint. The welder controls the process of feeding the small electrode or wire continuously and semi-automatically.

MIG welding has been around since the 1940s and was first introduced to weld non-ferrous metals such as aluminum. Over time, welders began using the MIG process for steel because it permitted shorter welding time than other processes.  Today, it is one of the most popular, heavily used industrial manufacturing processes.

Advantages of MIG welding include:

  • Quick - MIG welding is known for its quickness in producing welds.
  • User-Friendly - These welds tend to be more forgiving and are easier to make. Setup takes less time and is easy to automate.
  • Price - Equipment is more accessible and costs less for MIG welding.
  • Versatile – Great for spot and tack welding

WHAT IS TIG WELDING?

Tungsten Inert Gas (TIG) welding joins reactive metals using a non-consumable Tungsten electrode. Inert gas, commonly Argon, is released at the same time as the electrodes to produce a weld without air contaminants. Tungsten does not act as filler, it just creates the arc between the electrode and metal, but filler may be used if needed.

TIG welding offers a weld that is considered far superior to general welding. A TIG welder is more advanced than any other type of welder due to the difficulty of the process. The TIG welder uses both hands during this process – one to hold the TIG torch and the other to add the filler metal to the weld joint. This takes experience and high precision but results in a strong, precise weldment. TIG welding is typically desirable when welding critical weld joints and small precise welds or when welding metals such as stainless steel, copper, magnesium and aluminum alloys.

BORN DURING WWII

The invention of TIG welding is credited to Russell Meredith who filed a patent for the process in 1941. He was working for Northrup Grumman making airplanes for WWII. The idea came from his concern about meeting a critical national need -welding light weight aircraft materials. In fact, he states in the first line of the patent; “My invention relates to welding magnesium and its alloys - so relatively low melting point materials may be efficiently welded by an electric arc.” He goes on to say that airplanes are being made of lighter materials and a more efficient method of joining these materials is needed. Since then, this type of welding has become a widely used method of joining dissimilar metals together.

Advantages of TIG welding include:

  • Cleaner - Using Tungsten to provide its electrical current, TIG welding decreases the amount of sparks, smoke and fumes produced.
  • Precision - TIG welding has less contamination in its weld, providing more precise and higher quality welds.
  • Autogenous Welds - These welds do not require a filler material to be used. TIG welding can create a weld by melting one part to the other. Autogenous welds are most commonly used when welding thinner materials.
  • Versatile – TIG welding can be used for “first pass” welds on various sizes pipe. A wide variety of filler material/metal can be used.
  • Long Lasting – Highly resistant to cracking and corrosion over long periods of time.

FOR A FULL LIST OF OUR WELDING EQUIPMENT LIST CLICK HERE.

To find out more about G&H fabrication capabilities, please contact us today.

© Copyright 2012-2017. G&H Manufacturing. All Rights Reserved.   Privacy Policy