Automotive component testing applications Page 2

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4) Car bumper (fender) impact testing:
Linpac Mouldings needed to improve the method of testing their moulded car bumpers, their customer specified how to test but this was merely to swing a one ton weight into a standard car chassis fitted with the bumper under test and then to observe the effect! The engineers at Linpac wanted a better calibrated and recorded test to improve their quality control.
The original test method had to be kept as specified by the end customer, but with the addition of force sensors in the bumper mountings and a deflection sensor at the centre of the bumper with a position sensor recording how far the test vehicle rolled backwards, we could record on a computer the applied force, deflection of the bumper together with the reaction of the test vehicle, this information could then be stored for future reference.

5) More testing for leaks in automotive components:
Since 1982 we have had a great number of enquiries for leak testing of components. The most difficult were the tests where the customer insisted that the operator could handle the component as the test progressed. Heat from the hands causes internal pressure changes which can disguise a leak or even show a positive leak! Please note that some manufacturers of leak testing instruments have made claims that their instruments incorporate temperature compensation for changing component temperatures - beware of these claims!
Amongst some of the components we have designed leak test equipment for are:
Motor radiators (cooling and heating), Fuel and other pipe assemblies, Fuel senders with functional test and Plastic moulded and welded ventilation air ducts, although this leak test was at a very low pressure and the pass leakage was more of a flowrate!

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Phone: +44 (0)1582 600016
Fax: +44 (0)1582 600016
Email: info@march-designs.co.uk

March Designs & Measurements
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