Figure 5: Fix-Perfect Tool In the crankshaft production line, the KM tool system is used for the machining of the main journal and the front and rear end journals. The KM tool system was jointly developed by Kennametal Corporation of the United States and WIDIA of Germany. Its basic shape is similar to that of HSK. It also adopts a 1:10 hollow short cone fit and double-sided positioning. The main difference is the difference of the clamping mechanism. The KM shank is locked by the inclined surface of the steel ball. When clamping, the steel ball is pushed out along the inclined surface of the groove of the rod, and is stuck on the inclined surface of the locking hole on the shank. The shank is tightened to the spindle hole, and the shank is elastically deformed so that the end surface of the shank is in close contact with the end surface of the spindle. KM tool systems offer the advantages of high stiffness, high precision, fast clamping and easy maintenance. Tests have confirmed that the KM shank has a higher dynamic stiffness than the HSK system. Figure 6: QUATTRO-CUT tool Figure 7: KM Tool System Previous page next page Medium Heavy Duty PU Caster,Medium Caster Wheels,medium duty swivel caster BENYU CASTERS & WHEELS CO.,LTD , https://www.benyucaster.com