We had a problem with chip formation when machining electromotor housing, because of which machine stopped working. Housing is made out of aluminium alloy surrounding a steel sleeve. It was in our best interest to machine the whole housing at one machine with minimal diffirent tools. But there was a problem because of difference between materials with chip formation when machining steel sleeve. We tried to solve this problem by testing different cutting tools by different suppliers at different machining parameters. After testing we checked and measured all test subjects to see if their surface quality suits buyers demands. We checked tools indexable inserts under magnifier to see if there were any signs of usage. We analysed the cost and time of machining for the whole order of products for every tool. At the end we arranged tools from best to worst fit based on chip formation, quality of machined surface, productivity, machining cost, tool cost and usage of indexable inserts after testing.
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