January 10, 2006 | By Dr. John H. Olsen
Clamping the workpiece against sideways motion and weighting it against vertical motion will prevent part loss and improve part quality in waterjet machining. This article offers practical fixturing suggestions for both cutting from flat sheet and adding features to existing parts.
January 10, 2006 | By Vicki Bell
A recent CFO survey found that only 7 percent of businesses are preparing for a potential avian flu pandemic. Preparation is important for this and other events that can disrupt business and endanger employees. Guidelines include training and preparing an ancillary work force. Cross-training current employees and documenting processes can help.
January 10, 2006 | By Joel Pierson
Many fabricators use fairly rudimentary methods to keep turret press punch tooling stored, but often tooling isn't really organized. A common method is to store tooling horizontally and group tooling by station (A-station tools a grouped together, B-station tools together, etc.). Storing them vertically and grouping them by size (all rounds go together, regardless of station) leads to an elegant and simple organization.
January 10, 2006 | By Eric Lundin
Two big tradeshows, Schweissen & Schneiden (Essen, Germany) and the FABTECH® International/AWS Welding Show (Chicago) highlighted several of the trends that have emerged in the welding industry during the last couple of years. Senior Editor Eric Lundin reviews many of the recent developments in arc and laser welding, and the growing use of another joining technology, adhesive bonding.
January 10, 2006 | By Geoff Lipnevicius
Robotic welding can improve your productivity, but only if your fixturing design lets you. When you're designing fixtures for your welding application, consider your fixture's material; welding circuit optimization; orientation and deposition rates; accessibility, repeatability, simplicity, and dependability; and alternatives to fixture design when design costs are prohibitive.
January 10, 2006 | By Bob Butchart
Every press brake is subject to normal deflection under load. This deflection is corrected by shimming. If you deflect behond design limits, you will put a permanent bend in the ram and this is known as ram upset. You cannot adjust to compensate for ram upset. Remachining of the ram is the only solution. To avoid causing ram upset be careful about bending loads above your tons per inch limit and only air bend if possible.
January 10, 2006 | By William Holyoak
Tube cut-off machines have evolved to integrate end forming and bending capabilities that normally are considered secondary operations. The suitability of a cutting method to be integrated inline with end forming and bending depends on each cutting method’s characteristics and the bending and end forming requirements.
December 13, 2005 | By Doug Harris
Planning an offline band sawing system can be complicated because it can affect, and is affected by, many interrelated factors. Breaking it down to infeed, sawing, and outfeed helps to frame the planning by breaking it down to three subprocesses. Furthermore, answering 15 pertinent questions can help you tailor an efficient sawing operation to your specific facility and sawing applications.
December 13, 2005 | By Art Hedrick
Many specialty components can be used in dies, but the most commonly used are die plates, shoes, die sets, guide pins, bushings, heel blocks, heel plates, screws, dowels, and keys—all of which were explained in Part IV of this series. This article focuses on other common components—pads,...
December 13, 2005 | By John J. Pavelec
With the right equipment and proper setup, tube mills can produce dimple-free round tubing efficiently. A multistep process using a two shear blade makes a dimple-free cut, and an inline brush end finisher can be used to remove the ever-present clearance burrs, if needed
December 13, 2005 | By Marty Rice
Welding instructor Marty Rice explains how welding power current works and how failing to follow safety practices can have shocking results. He also expands upon the information contained in "TIG welding—An overview"and discusses TIG qualities, applications, hazards, and the best way to learn TIG.
December 13, 2005 | By Ron Hawkins
Low-volume, low-pressure (LVLP) lubrication systems can offer stampers a way to maintain the most appropriate lubrication level for each job while reducing oil consumption.
December 13, 2005 | By Kathleen McLaughlin
While some stampers are filing for bankruptcy, Alpha's lean manufacturing initiatives have propelled the Detroit-based stamper to a $50 million-dollar company and growing
December 13, 2005
Currently, Dana's Chatham, Ontario division produces several heat shields for fluid-management systems including heat exchangers, valves, and coolers. With higher demand yields and new orders, the stamper needed an automated press line that could improve uptime, quality, and reliability.
December 13, 2005 | By Brian Landry
The straightener, when set properly, removes the coil set, or curvature of the rolled material. If the machine is used or set incorrectly, the coil set can remain in the material, even after being struck in presses with capacities to hundreds of tons. This can cause a variety of problems: out-of-tolerance parts, difficult feed operations that can disrupt and slow performance, and, to some extent, additional wear and tear on feed line components and tooling.