Sumitomo Electric Industries, Ltd. (headquarters: Chuo-ku, Osaka, President: Osamu Inoue, hereafter "our company") has expanded and launched the SUMIBORONTM BN7125/BN7115 inserts for cast iron/sintered alloy machining for sale as of November 2024.
In the machining of cast iron and sintered alloy used for important components in automobiles, construction machinery and so on, demand is rising not only for high dimensional accuracy but also for further improvements in productivity. Due to high loads on cutting tool edges, there is a demand for tool materials that are tougher and have longer tool life. To meet these needs, in addition to BN7115 for sintered alloy finishing, our company has launched BN7125 for high-efficiency machining which has a balance of excellent wear resistance and fracture resistance to achieve stable performance in high-speed machining of cast iron and sintered alloy. To support more machining shops and parts specifications, we have expanded the lineup to include 1.2mm corner radius inserts.
SUMIBORONTM BN7125/BN7115 for Cast Iron/Sintered Alloy Machining
1. Features
Through improved CBN particle bonding strength using our proprietary binder and sintering process, BN7125/BN7115 grades have both high levels of wear resistance and fracture resistance, achieving high-speed, high-precision machining of cast iron and sintered alloy with a long and stable tool life.
- BN7125 : General-purpose grade for cast iron/sintered alloy machining
・ Achieves high-efficiency machining of sintered alloy with standard +3 types of cutting edge variations
・ Excellent thermal crack resistance in high-speed finishing of cast iron
・ Also suitable for the machining of exotic alloys such as rolls, HSS, heat-resistant alloys, etc.
- BN7115 : Sintered alloy finishing grade
・ Exhibits both excellent cutting edge sharpness and fracture resistance
・ Stable cutting edge sharpness suppresses burrs and tearing
2. Lineup
ISO Turning Inserts
BN7115 2 Cat. Nos.
BN7125 3 Cat. Nos.
Total 5 Cat. Nos. (expanded products only)
3. Sales Plan
550 million JPY/Year in the first year, 1.35 billion JPY/Year after 3 years
(*sales targets including existing BN7125/BN7115)
4. Price
(Standard Product) 2NU-DNGA150412HS BN7115 : 6,440 JPY (excluding tax)
(Standard Product) 2NU-DNGA150412HS BN7125 : 6,440 JPY (excluding tax)