Grinding Journal - Fall 2007 - (Page 6)

m Why easure cu t ting Toyota’s answer: Product quality and process reliability T oyota Motor Manufacturing Kentucky (TMMK) churns out 2,200 engines and 4,400 axles per day…from scratch. From start to finish the engine line takes one hour. They build a four cylinder engine every 37 seconds and a V6 every 72 seconds. Keeping that production humming with minimal scrap requires precise cutting tools. Getting good tools relies on the ability to measure tool quality. And that led Toyota to the Walter Helicheck tool inspection machine. The transition from trusting to verifying Mike Johnson, the Assistant Engineering Manager for the Powertrain group explains: “Initially we bought Fall/Winter 2007 t o ols? the Helicheck to measure tools coming in from our suppliers as an audit tool. But we took it further to what we call ‘Tool Point Management,’ in which we want to ensure that every critical tool is correct the first time it hits the line. Plus we wanted traceability of that tool, whether or not there’s an issue. Is that tool performing consistently every time, and do we have data to show it? Or is there a problem one out of fifty times, or one out of twenty times? We needed a way to specifically measure critical features on selected tools that have a high impact in the line for tolerance, and to be able to measure those tools quickly and provide the data out to the line.”

Table of Contents Feed for the Digital Edition of Grinding Journal - Fall 2007

Grinding Journal - Fall 2007 Contents From Virginia: Apparently no credit crunch for machine tools Why measure cutting tools Other perspectives on CNC tool measuring Productive grinding of superalloys SUPER service grinding BIG rolls Problem Solver

Grinding Journal - Fall 2007

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