Making holes is a critical capability for fabricators. This technology area covers ironworkers, perforating machines, piercing machines, drills, slotting machines, single-station punch presses, turret punch presses, and combination laser/punch presses.
February 8, 2005
Figure 1Having a pierce or perforating punch chip, or worse yet break, can cause severe die damage. It also can result in nonconforming parts because of burrs or undersize holes. Broken punch pieces can fall into the die and crush pads, as well as forming and cutting sections. This article...
September 14, 2004
Recent improvements in press drive technology, machine control design, tooling, and CAD/CAM programming software are increasing the throughput capability and the overall versatility of CNC turret punch press equipment.
July 13, 2004
Augur Metal Products, a sheet metal fabricator that manufactures components for OEMs, punches large stainless-steel sheets for commercial separators. Its punches required sharpening after punching 10 to 15 sheets until it changed to Mate punches made from DuraSteel™ tooling with Maxima® coating and dies made with Mate's Slug Free® design. The new tooling allows the company to exceed 40 sheets between sharpenings and increase press speed by 20 percent.
March 25, 2004
Ironworkers perform many functions that allow fabricators to simplify difficult tasks. No matter which type of ironworker you have, you probably have found yourself saying, "I don't know how I ever got along without my ironworker."
August 14, 2003
Custom metal fabricator Total Metal Products, Dallas, had a need for part marking that would be both accurate and cost-effective for small quantities. The company supplies punched parts in single and small-lot quantities of 200, 300, and 400 on a just-in-time (JIT) basis. Its customers include manufacturers in the telecommunications, aerospace, mass transit, and oil refining industries.
January 16, 2003
An ironworker can be an important and versatile machine in a metal fabricating shop. Quite often ironworking is the first step in the manufacturing process, and one ironworker typically can provide enough fabricated material to keep up to seven welders or assemblers busy.
December 13, 2001
The author discusses what not to do to manage slug ejection. He mentions several tooling maintenance errors that he has made over the years, as well as what machine operators can do if they want to experience slug ejection difficulties. He concludes by stating that the easiest solution to slug management is to keep the tooling in good condition and to use the correct die clearance for the material.
December 13, 2001
This article provides the basics on how the punch, die, and stripper work; how to perform material thickness calculations on various materials; how different applications affect punching quality; how fully guided tooling counters lateral forces; and how metallurgy, coatings, and maintenance affect tooling.