Tungaloy chipbreaker for high feed milling of hardened steelClick image to enlarge

Tungaloy has added a new chipbreaker technology to its DoFeed family for high feed milling of hardened steel.

The new MH chipbreaker line is dedicated to machining ISO H workpiece materials.

DoFeed is a popular high feed mill line designed for 3D profiling and contouring ISO H materials, such as the die steels and pre-hardened tool steel blocks commonly used in the die and mold industry. The new MH chipbreaker is developed specifically for machining hardened steel of 50 HRc or above.

A common issue in milling hardened steel is unstable tool life due to unexpected chipping or fracture on the insert’s cutting edge. Incorporating a large wiper radius on its cutting edge, the MH chipbreaker enables a smooth tool entry to the hardened workpiece, reducing the risk of insert failures due to the abrupt impact at tool entry. The rake face angle is also optimized so as to enhance its robustness during tough hardened steel milling. Thus, premature insert failure due to chipping and fracture on the cutting edge is significantly reduced.

AH8015 and AH8005 are the standard insert grades of this line, featuring a high aluminum-content, multi-layered AlTiN coating with a dedicated carbide substrate for excellent resistance to fracture and wear. AH8015 is designed for hardened steel of 45–55 HRc, while AH8005 is ideal for hardened steel of 55 HRc and above.

Similar Articles

Multisensor measuring for complex parts

Carl Zeiss's O-Inspect multisensor measuring machine offers easy, accurate and efficient measurement of complext parts, claims the company.

New general milling line from MC Machinery

MC Machinery Systems Inc. has launched a general purpose milling line, expanding its range of machine tools.

Simultaneous five axis machining

To build on the success of its compact five axis Mikron HSM 400U LP high speed milling centre, GF AgieCharmilles is upping the ante with a larger sized machine platform called the the Mikron HSM 600U LP, creating a family of linear motor full five axis simultaneous machining solutions that set a benchmark for speed, claims the company.

Toolholding for high performance machining

 A toolholding system for high performance machining developed by German tooling manufacturer Haimer is gaining in popularity in North America.

Doosan at IMTS: New manufacturing cell turning centre

Booth: S-8100

Combine a robotic arm with a turning center or machining center and you have a manufacturing system that almost any machine tool builder can provide. 

Stay In Touch

twitter facebook linkedIn