Thursday, March 11, 2010
Mig welding, also called wire feed welding, costs less and takes less time than further techniques of welding.
- Its virtually simple to do.
- The act of mig welding requires a lot less time.
- It is less expensive.
- Robots can be configured to implement the process mechanically.
- A shielding gas can be used in the process to generate smoothly finished welds.
Using a shielding gas is called the Gas Metal Arc Welding. The shielding gas provides you with better control over the cover of the molten pool of metal that is created. A variety of gases can currently be chosen for this type of welding.
A MIG welder can work with almost all kinds of metals. Mild steel and aluminum are accepted metals used in this welding process.
You can find a variety of machines that series in cost, capabilities and size. In order for you to select the suitable welder for your particular needs, the maximum thickness of the metal you will be working with must be resolute. Once you make that reason, you will be able to locate a welder that will be able to execute to your expectations.
You might want to consider purchasing a welder that is one size bigger than what you suppose you will use. Since a time will come most likely soon after purchase, when a project will need more power than you originally determined was your maximum that you needed.
posted by Plasma Cutters
@ 3:40 AM
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Thursday, March 4, 2010
For light materials the square-edge butt joint is the easiest to prepare and can be welded without filler rod. It consists of “butting” two pieces of metal up against one another (no overlapping) and then welding along the seam between them. If the weld is to be made without filler rod, extreme care must be taken to avoid burning through the metal.
The single-V butt joint is preferable on material ranging in thickness from 3/8” to 1/2” in order to secure complete penetration. It is prepared like a regular butt joint except that the top edge of each piece is chamfered in order to reduced the area of contact between the two. The included angle of the V formed by the chamfering should be approximately 60° with a depth of about 1/8” to 1/4”.
The double-V butt joint is needed when the metal exceeds 1/2” thickness and the design is such that the weld can be made on both sides. This is like a single-V joint except that both the top and the bottom edges of the pieces are chamfered, and welding is performed on both sides. With a double V there is greater assurance that penetration will be complete.
The single-V butt joint is preferable on material ranging in thickness from 3/8” to 1/2” in order to secure complete penetration. It is prepared like a regular butt joint except that the top edge of each piece is chamfered in order to reduced the area of contact between the two. The included angle of the V formed by the chamfering should be approximately 60° with a depth of about 1/8” to 1/4”.
The double-V butt joint is needed when the metal exceeds 1/2” thickness and the design is such that the weld can be made on both sides. This is like a single-V joint except that both the top and the bottom edges of the pieces are chamfered, and welding is performed on both sides. With a double V there is greater assurance that penetration will be complete.
Labels: Butt Joints, TIG Welding
posted by Plasma Cutters
@ 4:38 AM
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