Machine vision checks shock-absorber-seal integrity

Ensuring the smooth movement and leakage resistance of shock-absorber seals requires accurate, rapid geometric measurements.

Ensuring the smooth movement and leakage resistance of shock-absorber seals requires accurate, rapid geometric measurements.

With more than 80,000 products in its portfolio, Freudenberg Anlagen- und Werkzeugtechnik is one of the world's largest manufacturers of sealing products for the automotive and aerospace industries. "Because of the large variety of products produced by the company, quality assurance was, in the past, limited to random sampling," says Thomas Bauernhansl, general manager. "Now, however," he says, "automatic optical inspection systems integrated into the production process are used to identify manufacturing processes that may cause product defects. Using feedback-control mechanisms, these systems can help reduce the number of product defects and increase the quality of production processes to a six-sigma level."

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