Content tagged with "gap"
Results: 32
Article
June 8, 2004
Spraying it right
For coil-fed applications, spray cabinets can be mounted to the feeder to accommodate passline changes. Most stampers understand the need for lubricants, but many apply as little as possible so they don't have to deal with the mess. Others take an opposite approach and flood the tool... Read more...
Article
March 11, 2004
Article
October 9, 2003
Controlling bend angles
Spring-back Analysis All metal has a certain amount of spring-back. Spring-back, also known as elastic recovery, is the tendency for the metal to want to return to its original flat blank shape after being bent. To fully understand why metal springs back, we first must understand that metal,... Read more...
Article
October 9, 2003
Combating plate corrosion
According to a recent study sponsored by the U.S. Federal Highway Administration (FHWA)1, with support from NACE International—The Corrosion Society, corrosion-related direct costs such as prevention methods and infrastructure repair and replacement make up 3.1 percent of the gross... Read more...
Article
September 25, 2003
Hydraulic presses make their mark
Just like hydraulics technology itself, the market for presses based on it is fluid and dynamic. And for the first time in a while, the tide may be turning in favor of its practitioners. As many manufacturers report prosperity and strong prospects for it in the near future, the hydraulic... Read more...
Article
September 25, 2003
Supporting the defense
United Defense's motto is Changing the future of defense™. One of its latest missions toward this goal was to introduce a direct diode laser into its Aberdeen, S.D., manufacturing facility. The company designs, develops, and produces combat vehicles, artillery, naval guns, missile... Read more...
Article
August 28, 2003
Measuring tube as it grows and shrinks
We always have some confusion at our house concerning desserts. My wife claims that I like only two kinds of pie: hot and cold. Well, she is mostly right. My favorite is cherry, and I love it served either hot or cold. Here's our family recipe—you be the judge.
Grandma's Cherry Pie... Read more...
Article
May 29, 2003
Roll form tooling tryout and troubleshooting
The secret to developing successful roll tooling—whether for tube production or roll forming—and achieving maximum roll integrity is a simple but often overlooked notion: a comprehensive approach. Such an approach comprises five steps: Designing the roll tooling... Read more...
Article
May 15, 2003
Solving the mysteries of the fin pass—Part 2
First, some ground rules (assumptions) for the arrangement before we discuss some possible reasons for poor-quality seam welding and their solutions:
1. You are working with a new set of rolls and spacers. We assume that the rolls are manufactured correctly. This eliminates from the equation... Read more...
Article
November 15, 2002
Equipping Your Press With the Right Tonnage Monitor
Tonnage monitoring equipment has been around for several decades. The early models were sometimes finicky, hard to use, and susceptible to outside electrical interference. Today's tonnage monitors are easier to install, simpler to use, and more reliable. Many types are available to meet the... Read more...
Article
July 26, 2002
Repair Brazing: Fixing Faulty Jobs and worn-out components
Brazing is a versatile process used in many industries to join materials permanently. Repair brazing is an essential part of the industry and usually is done for one of two reasons—to braze repair parts in-house before they are released to customers and to perform repairs on brazed... Read more...
Article
November 15, 2001
Setting realistic goals for robotic welding projects
Companies interested in purchasing robotic welding equipment often expect robots to solve all their productivity and quality problems. After installation, the actual results often do not meet the end user's high expectations. The natural conclusion is that the robot company dropped the ball;... Read more...
Article
October 25, 2001
Achieving straight-side capabilities in a gap-frame press
Gap, or C-frame, mechanical stamping presses have undergone relatively few fundamental design changes since they were first introduced in the mid-1800s. The basic principle behind their operation, simply stated, is this: Inertial energy stored in a rotating flywheel is converted to a... Read more...
Article
October 25, 2001
Article
October 11, 2001
Article
September 17, 2001
Welding exhaust system components
In the field of automobile exhaust systems, such components as manifolds, pipes, catalytic converters, and mufflers are joined either by the car manufacturer or by a subcontractor to form a subassembly ready for attachment. Today, large numbers of these components are welded with a laser.... Read more...
Article
September 13, 2001
Selecting the right materials for roll forming—Part 2
Alloyed Steel In addition to carbon, large varieties of metallic and nonmetallic elements are used to achieve the desired mechanical properties and corrosion resistance. The most frequently used alloying elements are manganese, cobalt, chromium, copper, molybdenum, vanadium, nickel, zirconium,... Read more...
Article
September 4, 2001
Changing the way they do business
Dealing with work loads, delivery schedules, and many other responsibilities doesn't leave managers with much time to consider factors that justify equipment improvements. Often this means ideas for improvements get shelved. However, fabricators who want to improve production and... Read more...
Article
August 16, 2001
Article
July 26, 2001
Article
July 26, 2001
How to avoid getting burned by hot work
Hot work can have disastrous results in a myriad of situations: At a metal processing plant, sheet steel became jammed in a tempering mill. An operator began using a cutting torch to remove the steel. Hot slag from the torch ignited oil deposits and oil-soaked paper towels lying around... Read more...
Article
July 26, 2001
Article
July 26, 2001
Article
July 12, 2001
How to Kill a Robotic Project in Five Easy Steps
The same few roadblocks always seem to conspire to either cause a robot project to fail or at least greatly limit its success. Too many manufacturers do things that virtually guarantee that their robots will have serious problems performing as expected. Many of these hindrances have... Read more...
Article
July 12, 2001
Automated welding for job shops
A robotic welding system represents a significant capital investment for a job shop. The number and diversity of typical products that job shops produce may discourage any interest in automation, primarily because the company cannot figure out how to justify the system purchase and operation.... Read more...
Article
July 12, 2001
The growing use of orbital tube welding
This trend is due partly to orbital welding's capability to make an entrapment-free, permanent connection that is highly resistant to vibration. This makes it a good choice for joints that are not intended to be disassembled in the future. However, the appeal of orbital welding also is due to... Read more...
Article
May 30, 2001
Key design principles for successful deep drawing
Successful deep drawing depends on many factors. Ignoring even one of them during die design and build can prove disastrous. However, regardless of the many factors involved, the most important element to a successful deep drawing operation is initiating metal flow. The following are key... Read more...
Article
February 19, 2001
Article
February 19, 2001
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February 19, 2001
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February 19, 2001
Article
February 19, 2001
Joining aluminum with GTAW: Advice for the novice
Aluminum: beautiful, lightweight, strong, versatile—and a real challenge to weld, especially for beginners. This article describes some of the new gas tungsten arc welding (GTAW) equipment available and its benefits, accessories required, points to consider before welding, and the... Read more...
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