Sheet metal bending calculation basics - The Fabricator
Nov 9, 2012 · 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 …
Bending Basics: The fundamentals of how to bend metal
Jan 2, 2014 · 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 ...
Stamping 101: Anatomy of a Mechanical Stamping Press - The …
Jan 15, 2008 · Stamped components are made by forming, drawing, trimming, blanking, or piercing metal—in sheet or coil form—between two halves (upper and lower) of a press tool, called a die (see "Stamping 101: Die basics," page 22). The upper member is attached to a slide, and the lower member is clamped or bolted to the bed or bolster.
Welding fumes, their health risks and hazards - The Fabricator
Mar 11, 2004 · 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 respiratory ...
Tube bending basics: How to bend tubing and metal pipe - The …
Feb 24, 2014 · Specialty tube bending processes abound, some old and some new. Most tubes, though, are bent one of four ways: ram-type bending, roll bending, compression bending, or rotary draw bendin g. Figure 1. Pipe is specified by its nominal pipe size, while tube is specified by its outside diameter.
Aluminum TIG welding settings: What you need to know - The …
Jul 19, 2018 · The rule of thumb for aluminum GTAW is to use 1 amp for every thousandth (0.001) of material thickness. In other words, welding a base material that is 1⁄8 in. (0.125) thick would require about 125 amps. When the base material is more than ¼ in. thick, the rule of thumb begins to deviate, and not as much amperage is needed.
K-factors, Y-factors, and press brake bending precision - The …
Mar 7, 2018 · Calculating K-factors. The K-factor is defined mathematically as t/Mt, where t is the neutral axis location and Mt is the material thickness. Because of the specific properties of any given metal, there is no easy way to calculate that value perfectly, hence the chart in Figure 2.
The Welder - Articles
The Welder - Articles - thefabricator.com is the digital home of The Fabricator magazine, the metal fabricating industry’s foremost authority on manufacturing technology. Technical articles, case studies, and company profiles from The Fabricator and its sister publications, The Welder, and The Tube and Pipe Journal can be found on this site.
Guidelines for tungsten electrode and color types - The Fabricator
Mar 7, 2006 · To ball the end of the tungsten properly, simply apply the AC amperage recommended for a given electrode diameter (see Figure 1), and a ball will form on the end of the electrode. The diameter of the balled end should not exceed 1.5 times the diameter of the electrode (for example, a 1/8-in. electrode should form a 3/16-in.-diameter end).
Understanding GMAW transfer modes - The Fabricator
Dec 14, 2008 · Consumables. Proper inductance and slope adjustments in short-circuit transfer mode help to ensure a flatter bead appearance with less spatter. The gas metal arc welding (GMAW) process uses four basic modes to transfer metal from the electrode to the workpiece. Each mode of transfer depends on the welding process, the welding power supply, and ...