SUMITOMO ELECTRIC AC4000K Cast Iron Turning Selection Guide

Long term verification of comparison between wear and chipping

In addition to the improvement of tool life, the AC4000K series also excels in wear control and edge suppression during long-term machining. In the continuous cutting comparison test of gray cast iron, after 10 minutes of cutting, the wear of the rear cutting surface of AC4010K was only 0.011 ", while the wear of conventional K10 tools and competitor A reached 0.014" and 0.016 ", respectively. The wear curve of AC4010K is significantly smoother, which means that AC4010K can maintain more stable dimensional accuracy over longer cutting times.

In the test of intermittent cutting of gray cast iron, AC4010K and AC4015K only showed slight chipping after 10 minutes of cutting, while conventional K10 tools showed chipping on the back face after 6 minutes of cutting and chipping on the front face after 10 minutes of cutting. For intermittent machining conditions, the anti chipping performance of AC4015K is particularly outstanding, which can effectively cope with impact loads and avoid premature failure of cutting edges.

In the continuous cutting test of ductile iron, the wear of the cutting surface of AC4125K was only 0.018 "after 18 minutes of cutting, while the wear of conventional K20 tools reached 0.016" after 12 minutes of cutting, and the wear of competitor A reached 0.012 "after 6 minutes of cutting. The wear resistance advantage of AC4125K is particularly obvious in long-term cutting, which can significantly extend the tool life.

Complete tool product line support

The AC4000K series has a complete tool product line support. In terms of turning, various specifications of cutting tools are provided, including negative angle triangle (TNMG/TNMM), negative angle diamond (CNMG/CNMM), negative angle square (SNMG/SNMM), negative angle 35 ° diamond (VNMG/VNMM), etc. These blades offer a wide range of tool tip rounded corners (such as 0.15, 0.31, 0.46, 0.62, etc.) and inscribed circle diameters to meet the contour machining needs of different cast iron parts.

In terms of chip breaking grooves, the four groove types EGU, ENZ, EGZ, and EME cover the full range of applications from precision machining to rough machining. EGU is suitable for precision machining of low rigidity workpieces, ENZ is suitable for precision machining, EGZ is suitable for general machining, and EME is suitable for high feed rough machining. For large cutting depths and intermittent machining, the chip free groove model provides the most outstanding cutting edge strength.