Abstract
The possibility of improving the durability of stamping and cutting tools made of steel R6M5 (M2) for automotive parts manufacturing is considered. It has been shown that the main factor determining the steel properties is the time of the fist tempering under condition that the modes of quenching and of the second tempering are standard
Highlights
Over 70 % of the automotive parts are manufactured using different types of steels by cutting, cold stamping (CST), hot stamping (HST), sheet stamping and so on
An important advantage of CST is a high factor of material utilization: as compared to casting and HST it saves about 50 % of metal, compared with machining waste chips are reduced 2–3 times
We applied the principle of choosing the first tempering procedure depending on the type of a tool and loading character
Summary
Over 70 % of the automotive parts are manufactured using different types of steels by cutting, cold stamping (CST), hot stamping (HST), sheet stamping and so on. The number of products manufactured by CST is growing steadily. This method is used for producing fasteners, bearings balls, rollers, rings, piston pins, balls of suspension and other. An important advantage of CST is a high factor of material utilization: as compared to casting and HST it saves about 50 % of metal, compared with machining waste chips are reduced 2–3 times. At CST the factor of material utilization reaches 0,9–0,95. Parts manufactured by CST are often brought to the final form by cutting (ends facing, narrow grooves cutting, drilling of small diameter holes and others)
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