What’s happening, when a work piece needs deburring on the back side, which is hard-to-reach or where a turning over of the part is not possible?
From left to right: MiquMill Frontchamfer and MiquMill Backchamfer.
A new solution With a new cutting tool Mikron Tool SA Agno provides the solution. It’s a milling cutter, which has been especially designed for back chamfer milling of contours and bores in smallest dimensions. Compared to other products available on the market it has up to 50% more teeth. This results in a better surface quality also at high cutting speeds. Most particular are also the dimensions: Already for smallest holes and micro machining, starting from diameter 0.4 mm and depths of 5 x d, it can be optimally used.
Small and precise In other words; its main applications are wherever within small dimensions high quality and accuracy are required. Typical examples are the watch industry, medical engineering, automotive (fuel injection) or electronics. Best results are achieved by considering various factors. Mikron Tool recommends conventional milling in two steps, thus avoiding secondary burrs.
Two steps for a better result The quality and the straightness of the bore are of utmost importance, particularly for small diameters. For this reason also for short bores a preliminary pilot hole is recommended. For hard metals over 56 HRC a special execution is provided to guarantee best results. Particular attention has to be given to the milling strategy: in case of ductile or big chips at the bore end, a straightly lateral feed of the chamfer mill can result in tool breakage. In this case a different approach, which is easily realizable on every CNC machine, is recommended.
Available… today Standard sizes from 0.36 to 5.7 mm for hole depths to 5 x d are available from stock. Besides Mikron Tool supplies also special custom tailored executions, including for the simultaneous deburring and chamfering of the front and the back side of the work piece. You can download the brochure here.
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Mikron Tool SA Agno Via Campagna CH-16982 Agno Phone +41 91 610 40 00 Fax +41 91 610 40 10 mailto: [email protected] www.mikron.com/tool
