Diamond-Tipped Tools Cut Sintered Carbide
IMTS 2018: Horn USA’s CVD-D-tipped tools are designed for drilling, turning and milling carbide in the sintered state, up to a hardness of 2,200 Vickers.
Horn USA’s CVD-D-tipped tools are designed for drilling, turning and milling carbide in the sintered state, ranging to a hardness of 2,200 Vickers.
Depending on the application, the geometrically defined cutting edges range from extremely sharp and rounded to positive and negative chamfers. With application-specific cutting edge optimization, CVD-D diamond can be useful for roughing work or fine finishing.
According to the company, the tools enable accurate profile machining in the micron range. In terms of roughness, polishability and corrosion behavior, the surface structure is reportedly comparable to grinding and eroding processes.
To make the transition to hard turning, you'll need to switch from carbide to CBN inserts, but that is easier (and more economical) than you might think. It's making the jump to much higher surface speeds that might scare you off. It needn't. Here's why.
One of the most common methods of tapping in use today on CNC machines is 'rigid tapping' or 'synchronous feed tapping.' A rigid tapping cycle synchronizes the machine spindle rotation and feed to match a specific thread pitch. Since the feed into the hole is synchronized, in theory a solid holder without any tension-compression can be used.
Economic efficiency is an important consideration when choosing tools for challenging metals.