Tools for aluminium machining - Power-Tools
Tools for aluminium machining - Power-Tools
Tools for aluminium machining - Power-Tools
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Machinability of <strong>aluminium</strong> alloys1. Cutting <strong>for</strong>ceAluminium requires only approx. 30 % of the cutting <strong>for</strong>ce necessary <strong>for</strong>steel materials. The influence of the material on the cutting <strong>for</strong>ce is expressedthrough the special cutting <strong>for</strong>ce K s1.1 . The rake angle of the cutting edge isof particular interest regarding the cutting <strong>for</strong>ce. Increasing the rake angleby one degree the cutting <strong>for</strong>ce is reduced by ~1.5%.Important characteristics of PLANSEE TIZIT inserts:rake angle > 25°sharp, uni<strong>for</strong>m cutting edgeextra-smooth rake face2. Tool lifeThe time the cutting edge can be used until it is worn out. In the field of<strong>aluminium</strong> <strong>machining</strong> this criterion is determined by three wear <strong>for</strong>ms:cutting material:HM-K10tool life t [min]crater wearflank wearbuilt up edges andadhesion to thecutting edgeAlloysSource: WZL AachenReasons <strong>for</strong> wear:cutting speed Vc [m/min]thermal and mechanical stressdiffusion processes, frictionabrasive alloy elementstendency to sticktreatment state of the alloyImportant characteristics of PLANSEE TIZIT inserts:extremely wear resistant hard metal gradesoptimised coatingextra-smooth rake face4
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