Replaceable head reamer with optimised cooling

The replaceable head reamer CPR500/510 with optimised cooling offers an economic advantage in cast machining. For a significantly longer tool life, the solid carbide replaceable heads are designed with a diameter between 8 and 40 mm and have an innovative CVD coating. This coating was developed by MAPAL especially for cast machining and has already been successfully used for milling and boring, for example.

An additional technical coup of the new development is optimised cooling using a sleeve. Due to the abrasiveness of the material, the issue of cooling is very important for cast machining – this is solved to a great extent by inner coolant supply and outlets directly at the cutting edges. However there is a need for optimisation in the cooling of the contact point between the arc land chamfer and bore wall. Often coolant does not reach this area which can result in heat development and impairments to the bore quality and tool life. To counter this disadvantage, MAPAL has further developed the design of the CPR500/510 replaceable head so that it now has a sleeve attached behind the blades. The coolant is distributed by outlets at the sleeve end over the complete length of the cutting edges. In this way, the complete cutting edge and bore wall of the cast material are optimally cooled and lubricated.

AT A GLANCE
  • Solid carbide replacable heads
  • Innovative CVD-coating
  • Cooling sleeve
ADVANTAGES
  • Optimal cooling of the entire cutting edge and bore wall
  • Significantly longer tool life
  • Cast machining costs considerably reduced
News brochure "Innovations 2018"

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