Measurement

Portable CMM

Moving Parts, Moving Data, Keeping People

This Plant's labor-saving automation includes hardware for updating CNC offsets to adjust for gradual process changes. When the plant adopted its automated system, management thought carefully about the impact on staffing.

Using The Machine Tool As A Gage

On-machine inspection probing keeps jet engine production flying.

Sliced Bread—And The Limits Of Air Gaging

"Air gaging is the greatest thing since sliced bread," a friend once said. And he was right—air gaging is good.

Automotive OEM Employs Shopfloor CMMs To Improve Process Control

GM expects first-time quality from transmissions manufactured at this major manufacturer, which are shipped directly to the GM assembly line. There are no incoming quality checks or receiving inspection routines.

CMM Locks In Inspection And Productivity

This company, established more than 140 years ago, manufactures a high volume of brass padlocks annually. They are made on two large rotary transfer machines with drilling capabilities. The company is also doing reverse engineering for tooling purposes for other machines it uses in its manufacturing and assembly departments.

Surface Texture From Ra to Rz

The irregularity of a machined surface is the result of the machining process, including the choice of tool; feed and speed of the tool; machine geometry; and environmental conditions. This irregularity consists of high and low spots machined into a surface by the tool bit or a grinding wheel.

Tight Tolerances And Trial Runs

This contract shop is committed to difficult jobs. The shop often takes on a job without knowing how the part will be made.

DFGT - Double Flank Gear Testing

Functional gear testing, also known as total radial composite deviation, is a method of looking at the total effect of gear errors. This test method simulates the conditions under which a set of gears is likely to operate as a result of the gears meshing together.

The Three Ds Of Straightness Plugs

We have touched on different applications of air gaging: size, match gaging and form applications such as taper. In this column, we'll discuss air straightness plugs.