Micro internal turning tools for lead-free brass

IFANGER's Swiss-MicroTurn line MTEP offers impressive micro internal turning tools that are five times longer tool-life in lead-free brass than competitors.

Challenge

The restriction of lead-containing free-cutting brass is forcing manufacturers in drinking water applications and the watch and jewelry industry to use alternative materials such as CuZn21Si3P and CuZn42. These "lead-free" variants have higher strength values but pose a challenge. CuZn21Si3P, with added abrasive silicon, stresses tool cutting edges and shortens their service life. The challenge is to develop long-lasting tools despite difficult machining properties that at the same time offer process-reliable chip control to prevent ribbon and tangled chips as well as "bird nests".

Solution / performance comparison

Test with CuZn21Si3P

2x roughing; 1x finishing, parameters according to the curve diagram below
Comparison data for tool life according to the bar diagram below

Test with CuZn42 PNA378 (Brand names: BlueBrass, EcoBrass)

2x roughing; 1x finishing. Parameters according to the curve diagram below
Comparison data for tool life according to the bar diagram below

MTEP_freigestellt

Detail of the IFANGER tool cutting edge used: Swiss-MicroTurn, MTEP 440145-R-K10 with innovative chip breaker

CONCLUSION: With the new Swiss-MicroTurn line MTEP, IFANGER has created groundbreaking micro internal turning tools that are significantly better than comparable products from competitors in terms of cutting ability, chip control and durability.