General Shop Equipment & Supplies

The October 2017 Machinist's Corner column explains the "eight wastes of lean," for which there is an acronym known as DOWNTIME: Defects, Overproduction, Waiting, Nonutilized talent, Transportation, Inventory, Motion and Extra processing.

In 5-axis machining, accurate rotary axis centerlines are critical, so regularly measuring and verifying these values is also critical. While the best course of action is to measure the machine using a high-tech system intended for this purpose, in a pinch you can use a manual process.

"Pressure" and "flow" are common terms when discussing air compressors, but the relationship between the two is often misunderstood.

Measuring machined parts on a surface plate has long been a tedious job, one that requires mastery of dial indicators, a pocket calculator and an adjustable height gage that most in the industry refer to as a "Cadillac gage." But several metrology providers offer a more sophisticated way to quickly and accurately check hole diameters, the distance between part features, centerlines and more. The tool is called an electronic height gage, and it has made Cadillac gages about as popular as whitewall tires.

Maintaining constant cutting forces provides a constant radial tool engagement throughout the entire cut, which eliminates spikes in the cutting forces. This approach allows the programmer to take a larger axial DOC while simultaneously maintaining a high feed rate and extending tool life.

With its new EOS M 290 additive-manufacturing system, Indiana Technology and Manufacturing Cos. (ITAMCO) now 3D-prints medical devices. After obtaining the system in June, the company started shipping components in August.

Keith Jennings, who writes the Manager's Desk column for Cutting Tool Engineering, shares his thanks for being able to work after surviving the epicenter of Hurricane Harvey in August.

CTE Editor Alan Richter highlights the 5-axis focus of the October 2017 issue.

The mood of MFG Day, the annual celebration of U.S. manufacturing that took place Oct. 6, doesn't cease after the plant tours and information sessions end and the participating students, parents and educators head home.

Mitchell Metal Products, Merrill, Wis., has received the first National Reshoring Award in recognition of the company's success bringing manufacturing back to the U.S. The award, given by The Reshoring Initiative and the Precision Metalforming Association (PMA), honors a company that has effectively reshored products, parts or tooling made primarily by metal forming, fabricating or machining.

Vibration is a fact of life in almost every machining operation. Whether you're milling, drilling, turning, or grinding, vibration can result in chatter that can ruin a part. Fighting chatter has generally been a matter of adding more mass to the machine, but if you're clever about things, chatter reduction can be accomplished electronically, too.