Testing and Measuring

Whether you need to measure dimensions or perform some sort of flaw detection on sheet, tube, or pipe, you'll find what you need in this technology area. It discusses measuring coordinates, diameters, and hardnesses; flaw detection using eddy current, ultrasonic, radiographic, and X-ray systems; and using a few other equipment types, such as vision systems and material composition analyzers.

Filter Content

Finger camera enables inspections in total darkness

August 10, 2004

The US-1478 VisionProbe® from UniWest enables technicians to perform visual and NDT inspections even in total darkness. Four high-intensity LED lights illuminate objects. A variable-focus lens...

Continue Reading

Fiber-optic, flexible borescopes deliver large images, up to 25,000-pixel resolution

July 13, 2004

Gradient Lens Corp. (GLC) has introduced a new line of Hawkeye® Blue flexible borescopes. The borescopes now are available in 2.5-, 4.0-, and 6.0-mm diameters. The new designs include high-clarity...

Continue Reading

Photogrammetric camera captures measurements in unstable industrial environments

June 8, 2004

The INCA3 photogrammetric camera from Geodetic Systems Inc. merges a ultrahigh-resolution CCD sensor with a compact, PC-based computer to capture field measurements in unstable industrial...

Continue Reading

Confined-space combustible gas detector offered

June 8, 2004

Biosystems LLC, a Bacou-Dalloz Company, offers the Cannonball3 confined-space gas detector. The system monitors combustible gases under low oxygen conditions where a dilution source of fresh air is...

Continue Reading

Weld scan probes use eddy current to detect cracks

May 4, 2004

Zetec Inc. has introduced +Point® weld scan probes for weld crack detection. The probes use eddy current testing (ECT) to detect both transverse and longitudinal cracks within a weld or structural...

Continue Reading

Inspection, measurement software features 250 enhancements

April 8, 2004

FARO Technologies Inc. has released CAM2 Measure® 4.0, which features 250 enhancements over previous versions, including a new user interface that shares a common look and feel with the company's...

Continue Reading

JD Power problem ratings

The problem with quality

July 10, 2003

By:

In May, automotive quality gurus J.D. Power & Associates released the results of its 2003 Initial Quality Study (IQS). As is the case every year, the winners will trumpet their scores while the losers will promise improvement. A closer look at the numbers, however, reveals some interesting observations.

Continue Reading

Do you use checking jigs and fixtures?

July 10, 2003

By:

How do you check tube fabrications to ensure they meet quality standards? Do you ship parts without checking them and hope that the next time the phone rings it isn't a prelude to a tirade from a disgruntled customer? Or do you check finished parts only to realize that your scrap rate is too high and wish you had checked them at earlier stages of the manufacturing process?

Continue Reading

Understanding weld discontinuities

June 12, 2003

By:

A welder's primary concern in any kind of work is ensuring his weld is sound. For this reason, it's important for an inspector examining the weld to be able to spot a variety of weld discontinuities, including:Porosity.Incomplete fusion.Incomplete joint penetration.Unacceptable weld...

Continue Reading

In-service weld defects, Repair, replace, or do nothing?

December 12, 2002

By:

Editor's Notes: In-service weld defects found in Australian refineries by an inspection team required assessment to determine the best course of action - repair, replace, or do nothing. This is the author's first-person account of the team's findings and solutions.The post-World War II period to...

Continue Reading

Quality as Part of the Contract

October 24, 2002

By:

Leaders who oversee weld designs, materials, methods, personnel training, and manufacturing teams should promote welding performance by addressing quality and testing issues in contracts for any work. Total quality systems and weld acceptance criteria must be specific--specified for each contract--and adherence must be enforced without wavering. Acceptance criteria for welding should be agreed to in a face-to-face meeting before fabrication begins. Before a project begins, all parties should agree on the retention time for inspection and test records—including X-rays, personnel qualifications and other project data--and the contract should state the location and description of the records storage facility.

Continue Reading

Aluminum bend test picture

Preparing, testing bend samples

September 26, 2002

By:

Bend tests for aluminum are different than for steel. For instance, lack of fusion discontinuities in aluminum usually don't show up as well in radiographs. A bend test is a more discriminating way to test your aluminum weld.

Continue Reading

Some 'near-jig' ideas

July 25, 2002

By:

In-process sampling and between-process checks can prevent problems at the production stage. Although using an inspection jig can be costly, some testing approaches that are not as rigorous as using an inspection jig are: stacking and blocking a sheared batch in order to scan the batch for variations; weighing castings; touring a customer's facility; and doing small batch inspections.

Continue Reading

Technology modernizes CMMs

July 11, 2002

By:

Coordinate measuring machines have progressed since their inception in the 1970s.

Continue Reading

Electromagnetic force diagram

Will your weld hold up? Discovering and preventing incomplete fusion

March 14, 2002

By:

This article examines the common weld defect known as incomplete fusion. It takes an in-depth look at the causes of this problem, how it is detected, and how to prevent it.

Continue Reading