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Articles tagged with "roll forming"

Results: 33

Working with your people

If people are your most precious resource, why aren't you spending more money to train them properly?

Publish date: July 11, 2002

Tech cell: Roll Forming


Examining roll forming machinery, tooling, and lubrication

Given the problems in your roll forming operation aren't attributable to material, you may want to look into machinery setup and especially your lubrication situation to uncover the real culprit.

Publish date: June 13, 2002

Tech cell: Roll Forming


Material—Is it always a problem?

If the problem with your roll forming operation lies in your material, here are some tips in getting to the heart of the problem.

Publish date: May 16, 2002

Tech cell: Roll Forming


Exploring the roll forming process: What you need to make a part.

If trying to improve your roll forming operation, look at the four M's -- machine, materials, manpower, and method. Those four areas hold the key to whatever may ail you.

Publish date: March 28, 2002

Tech cell: Roll Forming


Selecting the right materials for roll forming—Part 1

This is the first part of a two-part article. Read Part II.If you >examine the mechanical properties of several materials, including carbon steel, alloyed steel, stainless steel, as they relate to roll forming, you'll gain an understanding of the influence of some primary metal processes on roll forming.

Publish date: September 13, 2001

Tech cell: Roll Forming


Advanced roll forming troubleshooting: Avoiding potential problems in the machine, material, and tooling

When troubleshooting a roll forming operation, you first need to make sure the roll form tooling is designed and built properly and will produce a quality product when all the conditions are correct.

Publish date: February 27, 2003

Tech cell: Roll Forming


How important is roll forming lubrication compatibility?

At first glance, it doesn't seem that the compatibility of the lubricant used in the roll forming process needs much attention. You'd better look again. It may surprise you that the chemical and physical properties of the roll forming lubricant leave fingerprints in at least six different areas of the operation.

Publish date: September 25, 2003

Tech cell: Roll Forming


Worn out roll forming tooling and no drawings?: Reverse-engineer it

You may have found yourself saying, "I need to make an engineering change to my roll form tooling, but I don't have the roll tooling designs or drawings." When you are faced with this situation you will have to start at the beginning, basically, and reverse-engineer the complete set of roll form tooling.

Publish date: March 25, 2004

Tech cell: Roll Forming


Roll forming basics

Roll forming, often called open-section forming, uses successive sets of roller dies to bend a strip of steel progressively until the desired shape is achieved. This process is very similar to traditional tube- and pipemaking, but differs in that it can form more complicated sections.

Publish date: January 11, 2005

Tech cell: Roll Forming


A good start makes a difference: How to set the entrance guide elevation for best results in roll forming

Understanding the relationship between the elevation of the entrance guide and the shape of the roll formed strip is crucial to satisfactory roll forming. The entance guide elevation, if improperly set, can cause the strip to bow and twist as it leaves the first forming pass. Setting the elevation properly can help to eliminate additional stress and strain at the strip edges that cause bow and twist.

Publish date: March 8, 2005

Tech cell: Roll Forming


In the loop on closed-loop roll forming?: Understanding the merits, drawbacks of open- and closed-loop control systems

In roll forming, non-stop punching and shear systems have traditionally employed simple open-loop control methods. Closed-loop (also called servo-based) systems can overcome many limitations of the open-loop design and yield higher line speeds, reduce downtime, and reduce scrap.

Publish date: December 13, 2005

Tech cell: Roll Forming


End distortion on roll formed parts: Investigating causes and cures

Roll-formed parts are subject to end distortion when the parts are cut at the end of the roll-forming line. Understanding the forces that contribute to end distortion is the first step to balancing the forces and eliminating end distortion.

Publish date: December 13, 2005

Tech cell: Roll Forming


Roll forming using spring-loaded top rolls

For certain sheet metal applications, roll forming with spring-loaded top rolls is a practical production method. This article explains the process, describes various machine configurations, and outlines the criteria for suitable applications. It also discusses product requirements that are incompatible with this process.

Publish date: July 11, 2006

Tech cell: Roll Forming


Stud-maker throws church building a curve: Curved studs facilitate free-spanning dome

Radius Track, a fabricator specializing in its patented curved metal studs, replaced many of the heavy-gauge beams in the a church's dome frame with light-gauge steel studs. As a result, the dome was light enough to be supported without view-obstructing columns.

Publish date: September 12, 2006

Tech cell: Roll Forming


Surveying suitability of welding processes for roll formed parts: Array

Array

Publish date: Array

Tech cell: Roll Forming


Is metal roofing fabrication right for your shop?: How to ensure your roll forming operation is a good fit

When deciding wheher or not to produce roofing panels, you need to determine your ROI, based on if you can use existing equipment or need new equipment, the required panel appearance; possible line configuration; and material handling options.

Publish date: April 10, 2007

Tech cell: Roll Forming


Roll form tooling design for air bending: Selecting a techique for reduced distortion

Several techniques are used commonly to reduce profile distortion when air bending with a roll former. These include small-radius forming, false bending, vertical side rolls, and angle side rolls.

Publish date: April 10, 2007

Tech cell: Roll Forming


Rolling to market: Array

Array

Publish date: Array

Tech cell: Array


Edge treatments for roll formed parts: Eliminating burrs to eliminate injuries, scratches

According to OSHA and BLS data, safety in metal manufacturing has been improving. Workplace injuries and injury severity fell from 2000 to 2006. The biggest improvements have been in severe injuries, so minor injuries have gotten more attention lately. One such minor injury is cutting. Roll formers can do their part to prevent workplace cuts by focusing on deburring.

Publish date: May 13, 2008

Tech cell: Roll Forming


Understanding bending, moving material in roll forming: Directing forces for optimal results

Roll forming is a matter of two processes: shaping material using localized deformation with a large amount of material movement (in other words, bending and moving the material). Localized deformation (bending) is a permanent bend with a slight thickness reduction at the bending line. Material movement is a matter of relocating or rotating a section, either formed or unformed, without changing its shape. Although roll forming engineers often address these processes at the same time, it can be helpful to consider forming and movement separately.

Publish date: September 30, 2008

Tech cell: Roll Forming


Continuous improvement for roll forming: Part I: Measuring capacity and utilization

Continuous improvement and statistical process control are useful, time-tested techniques—they have been used since the 1950s—but their use must be tailored to specific applications. For example, a typical manufacturing metric is parts per minute, but many roll formers should measure feet per minute. This and other tips can help roll formers accurately evaluate their productivity and measure the impact of process improvements.

Publish date: March 10, 2009

Tech cell: Roll Forming


Rotary punching revisited: Taking a new look at an old friend

New ways to increase production, reduce laborcosts, and maximize floor space may be foundby revisiting a 50-year old technology—rotarypunching. Many part features and patterns canbe punched and formed using pull-throughrotary units at up to 300 feet per minute(FPM) in materials as thick as 1/16 inch. Inaddition, cam technology allows rotarypunching and forming of material thicknessesup to 0.105 in. (12 gauge). Servo drivesempower line speeds as fast as 650 (FPM).

Publish date: August 6, 2009

Tech cell: Roll Forming


Roll forming gets flexible: Technology evolves to meet the demands of lower-volume production

Array

Publish date: December 2, 2009

Tech cell: Roll Forming


Surveying suitability of welding processes for roll formed parts - Part II: A look at resistance welding

Of the many weld processes used, resistance and fusion welding are the most likely to be integrated with roll forming. This article takes a look at two resistance welding processes: high frequency welding and rotary spot welding.

Publish date: December 11, 2007

Tech cell: Roll Forming


Rolling to market - Part I: Cutting lead-times with on-site roll forming

For many jobs, the toughest part isn't roll forming the parts themselves—it's getting those parts to the customer. . Parts are cut-to-length, then placed on immense wooden frames in such a way that allows the maximum load on a truck. That's a lot of material handling. But what if a shop eliminated the packing altogether by taking the roll forming to the job site itself?

Publish date: March 11, 2008

Tech cell: Roll Forming


Reality TV: Frame-making in the U.S.: Oceanside, Calif.-based fabricator successfully competes in global CRT framemaking market

Sumitomo Metal Mining USA (SMMU) Inc. has supplied cathode ray tube frams to some of the largest, high-end television manufacturers in the world from its Oceanside, Calif., facility. Despite the trend in moving manufacturing overseas to take advantage of cheaper labor pools, SMMU believes it is poised to remain competitive while maintaining its U.S. base of operations.

Publish date: November 8, 2005

Tech cell: Fab Stories


Holding the line on metal costs: Reducing coil line scrap can expand your bottom line

Stampers and roll formers can look at edge trim, heads, tails, skeletons, and coil damage for ways they can reduce scrap to hold the line on metal costs.

Publish date: September 12, 2006

Tech cell: Coil Processing


Rolling to market: Array

Array

Publish date: Array

Tech cell: Array


Rolling to market - Part II: More roll forming, less coil handling

A variety of methods help push a roll forming operation's efficiency. Various coil handling methods offer different levels of efficiency and automation, each suiting certain applications. The key is to analyze an operation, calculate the time spent handling coil, and then determine the best level of coil handling automation to fit.

Publish date: April 15, 2008

Tech cell: Coil Processing


Tier 1 supplier turns auto industry requirement into opportunity: Stamper uses standards for lighter weight, improved quality to take operation to the next level

With 50 years of metal stamping expertise under its belt, Speciality Stampings LLC, Adel, Ga., has established itself as a first-, second-, and third-tier supplier to the automotive industry. The manufacturer, QS-9000- and ISO 9002-certified, specializes in metal stamping, roll forming, assembly, and powder painting.

Publish date: January 16, 2003

Tech cell: Press Technology


Opening the gate to efficiency: Farm equipment-maker combines new, custom machines to boost productivity

Since 1945 family-owned and -operated Tarter Gate has grown in staff and sales as it has changed the design of its products. To keep up with sales, continue growing the company, and absorb as many rising costs as possible — particularly in steel and fuel prices — the company uses custom machines and new technologies to its advantage.

Publish date: August 8, 2006

Tech cell: Tube and Pipe Production


Roll forming high-strength materials: Higher strength, more springback, more forming challenges

The use of high-strength materials is growing, and roll forming engineers and tooling designers who want to form this material successfully need to arm themselves with knowledge about these materials, their capabilities, and the limitations. Knowledge gained from press brake bending operations is useful in predicting how these metals will form on a roll forming line.

Publish date: April 10, 2007

Tech cell: Tube and Pipe Production


New bends in the roll: Roll bending trends

As more commercial buildings are designed with larger open spaces, the beam spans grow longer, and the beams must be bigger and heavier. This requires ever-larger section bending rolls to accommodate this demand. In addition, the trend toward the use of higher strength steels has taxed the capabilities of plate roll bending equipment. These changes and other emerging demands have driven the trend toward the use of CNCs, inline material handling, and larger angle bending rolls.

Publish date: April 6, 2004

Tech cell: Bending