Big Kaiser Releases Smallest Yet EWN Boring Heads
Big Kaiser has debuted two smaller sizes of its EWN Smart Damper precision boring heads, which it says eliminate vibration in deep-hole finish boring.
Big Kaiser Precision Tooling has released two smaller sizes of its EWN Smart Damper precision boring heads, which it says eliminate vibrations in deep-hole finish boring with a patented damping system. The additions mark the first time the EWN Smart Damper has been available in diameters below 1.260", down to 0.787". The CK1 head has a length of 3.937" and the CK2 4.921".
Big Kaiser’s modular CK/CKB system allows for versatility in the length of tooling combinations — up to a maximum of 10 times diameter — and the company says they can run on nearly every major spindle interface. All tools are coolant-through and have three different insert holder options per head size. The EWN analog head features a dial with .0005"/div setting accuracy (.0001" with the Vernier scale).
The integral design of these Smart Damper heads shortens the distance from the damping mechanism to the cutting edge, which is the source of vibration. This produces higher damping effects to the tool assembly and minimizes chatter and vibration, resulting in what Big Kaiser says are better surface finishes and improved metal removal rates.
Economic efficiency is an important consideration when choosing tools for challenging metals.
Reducing cutting fluid use offers the chance for considerable cost savings. Tool life may even improve.
Cutting holes by interpolating a face milling cutter may be a better process choice for many rough and even finish boring operations. Software improvements and better cutter designs allow expanding use of the versatile face mill for hole making.