New tool banishes the burrs

A new range of endmill cutters from LMT's Belin division and available through LMT UK has been developed specifically to combine normal rough and finish cycles on heat sensitive polymethacrylate (PMMA) material.

This transparent material, largely used in aircraft bezels and control panels, can now be machined with a completely burr free, crystal clear cut surface due to the sharp and stable cutting edge created on the tool.

Developed using an ultra fine grain carbide substrate from sister LMT company Boehlerit with a multi-faceted finish grind, the Belin Cristal carbide cutter overcomes conventional tool problems that tend to generate higher levels of frictional heat, giving rise to a matt surface finish. Conventional tools also produce long stringy shavings that tend to adhere to the tool and cause scoring of the surface on the material. These problems can only normally be eliminated by separate rough and finish passes.
The Belin Cristal helical endmills are available between 3mm and 10mm diameter and can be run at up to 60,000rpm with feed rates between 0.8 and 10m/minute. They are available with both clockwise and anti-clockwise flute styles and are suitable for engraving, slotting, copying and panto milling of materials often used as signage.
 
There is also a range of collets and reduction sleeves for mounting in the machine tool spindle.

LMT
www.lmt-tools.com