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(Published December 2007)
Gardena’s Jürgen Knill says: “We required a technology which allowed us to design cooling channels in injection moulding tools, to enable simultaneous cooling of the complete part to maintain part quality as well as to speed demoulding.”
Using standard machining methods, the ideal position of cooling channels in parts with complex geometries often has to be compromised. Using SLM, it was possible to design and build them with a cooling circuit integrated into their most restricted areas.
Finishing operations such as grinding, spark eroding and hardened steel milling can be carried out on the cores using standard processes. Hardness of 52 Rockwell can be achieved.