MICRO METROLOGY | CASE STUDY MICROMETER PRECISION


A single tool can make all the difference in the quality of millions of products. Toolmaker KWS Kölle is therefore a true proponent of maximum precision. The company covers all production steps in-house and measures all components with a coordinate measuring machine from ZEISS.


<< Figures 1a and 1b: "It's all about accuracy when it comes to making tools," said KWS Kölle President Helmut Hübner (leſt). >>


and the same manufacturer: KWS Kölle in Mauerstetten, Germany. The company produces punching, bending, compound and forming tools, as well as injection moulding, zinc die-cast and glass moulds. Its products also include highly precise one-off parts and small series, prototypes, assemblies, fixtures and gauges. The areas of application are very widespread: one company needs to punch 2 mm thick steel with 10 micrometer accuracy, another needs to cast 300 mm long plastic parts with the same precision.


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here is a brand emblem on the steering wheel of just about every car on the road. Numerous German carmakers purchase the punching tools used to make them from one


26 | commercial micro manufacturing international Vol 7 No.4


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