5 steps for proper weld preparation - The Fabricator
网页2020年11月25日 · Enter the grinding stroke on a pull rather than on a push to help control the aggression of the grinding wheel. Grind in line with the material using smooth, even strokes rather than short, choppy strokes. This provides effective results with coated abrasives and bonded abrasives. • Avoid arm grinding.
6 steps to successful brazing - The Fabricator
网页2006年3月7日 · Step 1: Ensure good fit and proper clearances. Brazing uses capillary action to distribute molten filler metal between the surfaces of the base metals. So when you're brazing, maintain a clearance between the base metals to allow capillary action to work most effectively. In almost all cases, this means a close clearance.
Die basics 101 starts with eight basic components - The Fabricator
网页2006年8月8日 · A stamping die is a special, one-of-a-kind precision tool that cuts and forms sheet metal into a desired shape or profile. Most dies are constructed of several basic components, including die plates, shoes, die sets, guide pins, bushings, heel blocks, heel plates, screws, dowels, and keys. Dies also need stripper, pressure, and drawing pads, …
Bending Basics: The fundamentals of how to bend metal
网页2014年1月2日 · Bending and Forming. Figure 1: A plate’s grains run parallel to the rolling direction. While sheet metal gauges run from 0.005 to 0.249 inch thick, aluminum and steel plate thicknesses start at 0.250 in. and go all the way up to 13 in. or even more. Likewise, plate steel varies in strengths from mild varieties to some very high-strength ...
Die Basics 101: Forming operations - The Fabricator
网页2005年6月14日 · Bending and Forming. Figure 1. Embossing. All forming operations deform sheet material by exposing it to tension, compression, or both. Most part defects, such as splits and wrinkles, occur in forming operations. Successful sheet metal forming relies heavily on the metal's mechanical properties. The metal being formed must have the …
Welding fumes, their health risks and hazards - The Fabricator
网页2004年3月11日 · Short-term Effects of Inhaling Welding Fumes". Among the short-term effects is metal fume fever, symptoms of which occur four to 12 hours after exposure and include chills, thirst, fever, muscle ache, chest soreness, coughing, wheezing, fatigue, nausea, and a metallic taste. Welding smoke also can irritate the eyes, nose, chest, and …
The truth about pipeline welding and pipeline welder salary
网页2020年3月25日 · Photos courtesy of Keith Armentrout, Burnet, Texas. On average, a pipeline welder can make between $36 and $52 an hour on arm pay, anywhere from $15 to $25 an hour for the truck pay, and then somewhere between $100 and $150 for the per diem. With all that, let's just say for an example, on a 60-hour workweek a pipeline …
Six tips for waterjet troubleshooting and repair - The Fabricator
网页2018年6月1日 · Turn on the pump and allow pressure to build. Turn on the cutting head. Monitor the intensifier stroke rate via the indicator on the operator interface or manually by monitoring the proximity switches. Sometimes, if the overstroke alarm occurred in error, these steps will reset your system and resolve the problem.
Sheet metal bending calculation basics - The Fabricator
网页2012年11月9日 · Sheet Metal Bending Calculation. Bend Allowance (BA) BA = [ (0.017453 × Inside radius) + (0.0078 × Material thickness)] × Bend angle, which is always complementary. The length of the neutral axis is calculated as a bend allowance, taken at 50 percent of the material thickness.
Bending Basics: The hows and whys of springback and springforward
网页2014年7月9日 · Figure 3 Coining, bottom bending, and air forming affect stressstrain properties differently. The curved line in the air forming zone shows how springback changes at different bend angles. In bottoming and coining, bending methods that usually produce 90-degree bend angles, the line curves to the right of the vertical axis, showing how the …