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Product category: Coordinate measuring machines (CMM) and software
News Release from: Delcam | Subject: PowerINSPECT inspection software
Edited by the Manufacturingtalk Editorial Team on 14 February 2005

Inspection software boosts fire truck
manufacture

By bringing inspection in-house with two portable CMMs equipped with PowerINSPECT inspection software, a fire truck manufacturer is no longer at contractors' mercy.

Wisconsin-based Pierce Manufacturing, the USA's largest builder of custom fire trucks, has boosted its productivity by bringing inspection in-house with two portable coordinate measuring machines from Romer CimCore equipped with Delcam's PowerINSPECT inspection software "Before we purchased our own inspection equipment, we were at the mercy of when we could get a contract CMM service to help us," said Don Nennig, a manufacturing engineer who programs the inspection arms

"We were sending many parts out to an outside firm with a CMM machine.

Inspections cost roughly $300 apiece and, if they were backlogged, several days of delay." Pierce builds high-end fire apparatus, including over 1,300 custom fire trucks a year, with most units costing $200,000 or more.

In producing fire truck cabs, everything revolves around seven large welding fixtures.

Sheet metal components for each cab are fitted into the final assembly fixture manually and rested on stops as they are arc-welded together.

"The most obvious impact of the arms and PowerINSPECT is the ability for us to set up welding fixtures in-house with verifiable proof of the accuracy of the stops in a timely fashion," Nennig explained.

"Now we are able to work with our design engineers to develop and build fixtures.

This is a big boost in getting production started quickly." "There are huge time savings in troubleshooting on the shop floor," added Ryan Lang, a manufacturing engineer at Pierce.

"If just one stop in a fixture has moved, we can identify it quickly and see exactly how much and in what direction it moved.

Since each fixture has dozens of stops, finding the one that was out-of-position previously might have taken us a week." The new inspection facilities are also helping Pierce with redesigns and material substitutions to replace labour-intensive sheet metal work.

For example, fabricated steel mounting brackets are being redesigned as iron castings and fan shrouds have been switched from steel fabrications to reaction-injected moulded plastics.

"We need to do first-article inspections as new parts come in from suppliers.

Getting those done quickly and accurately is the key to production efficiency.

This is accomplished very effectively with the portable CMMs and PowerINSPECT," said Nettig.

"Data from the first-article inspections allow us to apply continuous product improvement methods to our castings and composite part innovations.

Every part can be accurately scrutinized and the results compared over time." "When we bought the first Romer CimCore arm, we considered the competition, too," Nennig said.

"PowerINSPECT was the big selling point, the shining star of the system.

It is a much more powerful organisational tool for handling geometry and groups of measurements.

We need to gather measurements in large groups, all at once, when we troubleshoot or do first-article inspections," he explained.

"Then we break the groups of data apart to look for root causes of problems and process-improvement opportunities. Request a free brochure from Delcam ...

We could not do that with any other software.".

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