Product category:
Milling cutters
News Release from: Mapal | Subject: PCBN form milling cutters
Edited by the Manufacturingtalk Editorial
Team on 22 April 2004
Form milling cutters offer 30% time
saving
Wear-resistant PCBN form milling cutters produce such high surface qualities that the time spent for final manual polishing can be reduced by 30 to 50%.
In manufacturing forms, for example a die block, precision finishing is of particular importance to the quality of the form and the possible cost for polishing Mapal has now successful converted years of experience in the area of hard milling universal joints into mould and die manufacturing
This article was originally published on Manufacturingtalk on 3 May 2004 at 8.00am (UK)
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As a result such high surface qualities are achieved that the time spent for final manual polishing can be reduced by 30 to 50%.
This is also made possible by the use of the particularly suitable and wear-resistant PCBN as a cutting material which produces a precise accuracy of form.
Long tool life and high production reliability from these tools allow the machining operation, which takes many hours for each form, to be run unmanned.
A further potential saving is offered by increasing cutting speed and feed when using Mapal PCBN profile milling cutters.
The Mapal programme of high precision milling cutters includes tools with PCBN blades in torus and spherical forms.
In addition to monoblock end mills, replaceable heads with HFS connections and the appropriate holders are also supplied.
A concrete example of the machining of a combined die block for the internal frame and external skin of a side door demonstrates the efficiency of these tools: * Material: GGG 70 L/58 - 63 HRC.
* Machining values: Vc = 440m/min, Vf = 4000mm/min and ap = 0.1 - 0.3mm.
The complete form was machined with just one PCBN milling cutter.
The machining time was 22 hours, with machining length of 3.4km.
These forms were previously machined with solid carbide tools coated with TiAlN.
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