You are here

High-performance machining of structural parts

News International-French

25 Feb 2015

JEC Europe 2015 - MAPAL presents a highly efficient tool solution for roughing aluminium structural parts.

High-volume cutting of aluminium structural parts is of major importance in the aerospace industry. Frame elements or wing parts are generally milled from solid materials, and often more than 90% of the raw part is cut away. Therefore, the tools and machines used should exhibit reliable, high performance to avoid scrap and keep machining times as short as possible.

With the new OptiMill-SPM high-performance milling tools, MAPAL presents a highly efficient tool solution for roughing aluminium structural parts. An important feature is the cutting edge length, which is approximately 60% of the diameter and thus allows a maximum contact depth for the milling of aluminium to be exploited. The optimally embedded PCD blades ensure high stability. The cutting forces of the PCD milling cutters are reduced by up to 15%. The conical design prevents tool bending during the machining process and scratching of the part wall by chips.

The new OptiMill-SPM tools are very successfully used in practice. A 32-mm-diameter milling cutter with three cutting edges can machine a frame element from AlZnMgCu 1.5 at a spindle speed of 28,000 rpm. The tool delivers optimum results at feed speeds of 16,800 mm/min and a cutting depth of 12 mm. The machining parameters were increased even further in a high-pressure test conducted at MAPAL’s testing centre. The tool showed optimum performance even at a feed speed of 22,000 mm/min, with a material removal rate that exceeded 8 l/min.

More information:www.mapal.com
Booth: S61

Company: