Kvalitetskontroll

Resultatet från maskinbearbetning mäts med mikrometer.

Kvalitetskontroll (ibland QC, för "Quality Control") är en process som används inom tillverkningsindustrin för att säkerställa att produkter och tjänster uppfyller köparens krav och förväntningar. Man delar upp arbetet strukturerat i de två delarna: tillverkning och kvalitetskontroll. De olika momenten görs antingen helt separat på olika avdelningar eller integrerat i processarbetet. För att avgöra kvaliteten används ofta en serie mätpunkter, där bedömningen sker enligt en binär skala (godkänd/icke godkänd) eller en flergradig skala (till exempel 1-5). Kvalitetskontrollen görs antingen maskinellt (såsom genom en våg som avgör ifall produkten faller inom godkända ramar) eller av människor.

Inom läkemedelstillverkning används exempelvis Good Manufacturing Practice.

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Quality Control Specialist Tim Russell uses a specialized micrometer to measure of machining performed at Port City Group’s Port City Castings Corporation manufactures high-pressure aluminum die-castings, mostly for the automotive industry, in Muskegon, MI, facility on Wednesday July 20, 2011. Port City Group boosted its employment by 12 percent over last year thanks to two Rural Business Guaranteed Loans totaling $9.6 million. In its 80,000 sq. ft. facility, machines that range from 800 – 1,600 tons, and cast A380 aluminum alloy products from melted ingots of aluminum, into automotive components of U.S.A. made vehicles. The process features a variety of robotic presses; computer controlled machining; quality control facility; and complete measurement and testing laboratory. In 2009 banks were backing out of loans for PCG equipment purchase agreements. The U.S. Department of Agriculture (USDA) loan guarantee helped make the loan possible with its guarantee. PCG obtained the needed robotic and other equipment. This resulted in a stable workforce that has since grown. When asked about their USDA experience, Port City Group Sales Manager Laura LaGuire said, “It was great! They were very helpful. Everything that came up was handled smoothly, the money came in place when it was needed, and it was a very smooth transition.” USDA Photo by Lance Cheung.