M42 HIGH-SPEED STEEL
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METHODS
OF MAKING TOOLS |
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| M42 can be worked in
the same way as other high-speed steels by plastic forming, machining,
grinding, electrical discharge machining, welding and polishing. In grinding, local heating of the surface, which might alter the temper, must be avoided. Grinding wheel makers can furnish advice on the choice of grinding wheels. Machining is carried out using carbide or high-speed steel tools. |
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BEND
STRENGTH |
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| The bend strength is a measure of the toughness of the material. It will be seen from the diagram that toughness and hardness can be controlled by varying the hardening temperature. |