Dec 7 2017
Other

Milling stainless steel in perfect surface quality

CrazyMill Cool is a new kind of carbide ball mill for finishing operations in titanium and nickel based alloys. This coated end mill with four teeth is available in diameter range from 1 - 8 mm (.039” to .315”) for milling depth 2 x d, 3 x d and 5 x d, each with a cutting depth of 1.5 x d. Two more versions are available specially for medical applications (implants) with usable milling lengths of 3 x d and 4 x d. The common features for the different executions are:
  1. Unique geometry with progressive flutes (from 30° to 40°) enables a vibration free milling. This provides excellent surface quality when milling in radius areas as well as   cylindrical areas.
  2. Integrated cooling channels provide the cutting edges in each position continuously with coolant avoiding overheating and allowing highest cutting speeds and maximum performance ap. At the same time chips are flushed out of the machining area. The result is a surface quality equal to a grinding finish.

Dec 7 2017
Other

Drilling deep holes in stainless steel - in one step

CrazyDrill Cool SST-Inox 15 and 20 x d is a carbide cutting tool for deep holes in stainless steel, heat resistant and CrCo alloys, available in a diameter range from 1 to 6 mm. Its special feature: drilling in one step – no pecking – with high speed and feed up to the total depth. These two factors are the primarily responsible:
  1. A new geometry with chip breaking shape in the front area and a rear chip flute area with extended flute shape to ensure perfect chip removal.  
  2. Two helicoidal cooling channels in a drop shape guarantee a constant cooling. They enable up to 4 times more coolant flow compared to circular cross section channels. The advantage is an increased tool life because the overheating of the cutting edges is avoided right from the beginning. For small diameters below 3 mm an additional “powerchamber” provides sufficient coolant flow to the twisted cooling channels. This powerful cooling helps with an easier chip breaking and flushing out of the spiral flutes.