The skill of tapping and threading may not be the most glamourous operation in metalworking but it’s undoubtedly one of the most important to get right.
The company has made significant inroads into Europe. Yamawa has around 1,000 regular customers in the region and in 2016 it set up a new division, Yamawa Europe in Italy where it has a 12% slice of the market.
“When it came to making products such as our micro taps it was impossible to find grinding machines that could work accurately on something so small,” Mr Policek comments. “This meant we had to design and build our own. We now have more than 1,000 grinding machines at our facilities, 90% made by ourselves. We also have more than 1,200 measuring devices and some of these are also designed and manufactured in-house. This is because every tool has to undergo at least three different quality checks before it leaves the factory.”
Other tool series on display at EMO included its AXE-HT range for high-performance tapping of aluminium alloy castings and MC-AD-CT micro-grain carbide taps with internal coolant holes for blind-hole tapping of aluminium and aluminium alloy castings.
“These thread mills are left handed so they operate counter-clockwise to reduce cutting torque. They can create the thread in just one pass with outstanding quality. It means you can save cycle time but still maintain a superb surface finish,” Mr Policek states.