Mitsubishi Materials Corporation was formerly known as Mitsubishi Metal Corporation. In addition to ferrous metals, various other materials can be produced. The hard alloy products division has factories in Qiqi and Tsukuba, producing various types of cemented carbide tools, and its output is the first in Japan and the third in the world.
The company has strong scientific research strength, new product development speed, and a complete information system. It has set up MTAS system (Mitsubishi Tooling Application System), which provides various samples, new product newsletters, various guiding documents, Cutting data, information base, etc. The company's latest products and technologies are described below.
1. New developments in tool materials
(1) US7020 coating for high speed cutting of stainless steel
The coating consists of a weld-resistant TiN layer, a wear-resistant micro-particle Al2O3 layer, and a fibrous tough TiCN layer with strong adhesion to the substrate. The substrate is a special hard alloy with high deformation resistance. The cutting speed of stainless steel can reach 120-220m/min, the cutting speed of soft steel below HB180 can reach 250m/min, and the speed of cutting bearing steel can reach 150m/min. The US735 coating is recommended for low speed cutting or interrupted cutting of stainless steel. The above coatings can further improve the cutting efficiency if combined with MS and MA chipbreakers.
(2) F7030 and THD30 coatings for milling steel
Their common feature is the use of newly developed high toughness special hard alloy base materials with good thermal shock resistance. F7030 is a thin film coating composed of a tough TiCN plus particulate Al2O3 made by CVD (Chemical Vapor Deposition). THD30 is a (TiAl) N-based multilayer coating made by PVD (Physical Vapor Deposition). F7030 has excellent comprehensive performance of wear resistance and brittleness resistance, and can adapt to a wide cutting speed range from medium speed to high speed. It is the first recommended variety. Due to the PVD coating, THD30 has less blade strength reduction during coating treatment. It is especially suitable for brittle damage (small edge chipping and defect). It is recommended to be used in low speed, small feed and unstable cutting conditions. .
(3) PM6300 special super coating for internal milling crankshaft and camshaft
Since the internal milling process is subject to severe thermal shock and mechanical shock, the PM6300 coating consists of fibrous TiCN crystals and particulate Al2O3. This coating has excellent wear resistance and can greatly suppress hot turtles caused by thermal shock. Cracking, even in wet cutting, shows stable cutting performance.
(4) The world's first developed (TiAl) N-based composite PVD cermet AP25N coating
The coating consists of a super-weld-resistant TiN and a wear-resistant, heat-resistant and impact-resistant (TiAl)N layer. The matrix is ​​an ultrafine-particle cermet NX2525. This coating has a greatly improved strength and oxidation resistance and a long life under high speed cutting. Due to its high thermal shock resistance, brittle damage is less likely to occur even in wet cutting and interrupted cutting. The cermet itself has high resistance to fusion welding, and if it is combined with FH and SH type chipbreakers, the cutting stability can be greatly improved.
(5) New tough silicon nitride ceramic XE500 suitable for high speed roughing of cast iron
The XE500 can cut from 300 to 800 m/min during turning or milling.
(6) Coating aluminum oxide and titanium compounds on the surface of XE500
It is suitable for continuous high-speed rough turning of black-skin cast iron. Due to its good wear resistance, the cutting speed can reach 1000m/min.
(7) A new type of new ultra-high pressure sintered body CBN MB810
MB810 is composed of larger CBN particles and particles TiN, Al2O3, and the like. The material has good wear resistance and coarse CBN particles, which can prevent front wear and is suitable for high-speed finishing of hardened steel, and the cutting speed can reach 150-300m/min.
(8) A new type of new ultra-high pressure sintered body CBN MB835
Conventional CBN cutting tools have insufficient brittleness damage resistance and are not suitable for intermittent processing. MB835 superfines the CBN particles, so the cutting force scattered on each particle is small, and the new variety increases the bonding force between the CBN particles, so that strong intermittent cutting can be achieved. The recommended cutting speed is 50-200m. /min (when cutting steel).
2. ZET1 integral drill
Mitsubishi's overall drill grade is ZET1, which has two basic forms, the MZE type with external cooling lubrication and the MZS type with internal cooling lubrication. Their dimensional accuracy is h8, and MZE can drill holes with a length to diameter ratio of 2-3. MZS can drill deep holes with a length to diameter ratio of 3 to 5. Their characteristics are:
(1) The chisel edge is ground, the plunge is good, and the drilling accuracy is high;
(2) The chip flute is wide, the bottom of the trough is deep, and the chip removal is good;
(3) Adopting a triple front angle, easy to grind;
(4) Adopt a sharp, strong straight main blade;
(5) MZS type has internal cooling oil hole, suitable for difficult material processing and deep hole processing;
(6) AP15F coating is recommended for low and medium speed machining; GP20M coating is recommended for medium and high speed machining. The life of the drill using these two coatings is often 3 to 5 times longer than that of a typical cemented carbide drill;
(7) The minimum size of the internal cooling drill can be 2mm.
(8) MZE and MZS, there are also composite drill bits with chamfering.
The company has strong scientific research strength, new product development speed, and a complete information system. It has set up MTAS system (Mitsubishi Tooling Application System), which provides various samples, new product newsletters, various guiding documents, Cutting data, information base, etc. The company's latest products and technologies are described below.
1. New developments in tool materials
(1) US7020 coating for high speed cutting of stainless steel
The coating consists of a weld-resistant TiN layer, a wear-resistant micro-particle Al2O3 layer, and a fibrous tough TiCN layer with strong adhesion to the substrate. The substrate is a special hard alloy with high deformation resistance. The cutting speed of stainless steel can reach 120-220m/min, the cutting speed of soft steel below HB180 can reach 250m/min, and the speed of cutting bearing steel can reach 150m/min. The US735 coating is recommended for low speed cutting or interrupted cutting of stainless steel. The above coatings can further improve the cutting efficiency if combined with MS and MA chipbreakers.
(2) F7030 and THD30 coatings for milling steel
Their common feature is the use of newly developed high toughness special hard alloy base materials with good thermal shock resistance. F7030 is a thin film coating composed of a tough TiCN plus particulate Al2O3 made by CVD (Chemical Vapor Deposition). THD30 is a (TiAl) N-based multilayer coating made by PVD (Physical Vapor Deposition). F7030 has excellent comprehensive performance of wear resistance and brittleness resistance, and can adapt to a wide cutting speed range from medium speed to high speed. It is the first recommended variety. Due to the PVD coating, THD30 has less blade strength reduction during coating treatment. It is especially suitable for brittle damage (small edge chipping and defect). It is recommended to be used in low speed, small feed and unstable cutting conditions. .
(3) PM6300 special super coating for internal milling crankshaft and camshaft
Since the internal milling process is subject to severe thermal shock and mechanical shock, the PM6300 coating consists of fibrous TiCN crystals and particulate Al2O3. This coating has excellent wear resistance and can greatly suppress hot turtles caused by thermal shock. Cracking, even in wet cutting, shows stable cutting performance.
(4) The world's first developed (TiAl) N-based composite PVD cermet AP25N coating
The coating consists of a super-weld-resistant TiN and a wear-resistant, heat-resistant and impact-resistant (TiAl)N layer. The matrix is ​​an ultrafine-particle cermet NX2525. This coating has a greatly improved strength and oxidation resistance and a long life under high speed cutting. Due to its high thermal shock resistance, brittle damage is less likely to occur even in wet cutting and interrupted cutting. The cermet itself has high resistance to fusion welding, and if it is combined with FH and SH type chipbreakers, the cutting stability can be greatly improved.
(5) New tough silicon nitride ceramic XE500 suitable for high speed roughing of cast iron
The XE500 can cut from 300 to 800 m/min during turning or milling.
(6) Coating aluminum oxide and titanium compounds on the surface of XE500
It is suitable for continuous high-speed rough turning of black-skin cast iron. Due to its good wear resistance, the cutting speed can reach 1000m/min.
(7) A new type of new ultra-high pressure sintered body CBN MB810
MB810 is composed of larger CBN particles and particles TiN, Al2O3, and the like. The material has good wear resistance and coarse CBN particles, which can prevent front wear and is suitable for high-speed finishing of hardened steel, and the cutting speed can reach 150-300m/min.
(8) A new type of new ultra-high pressure sintered body CBN MB835
Conventional CBN cutting tools have insufficient brittleness damage resistance and are not suitable for intermittent processing. MB835 superfines the CBN particles, so the cutting force scattered on each particle is small, and the new variety increases the bonding force between the CBN particles, so that strong intermittent cutting can be achieved. The recommended cutting speed is 50-200m. /min (when cutting steel).
2. ZET1 integral drill
Mitsubishi's overall drill grade is ZET1, which has two basic forms, the MZE type with external cooling lubrication and the MZS type with internal cooling lubrication. Their dimensional accuracy is h8, and MZE can drill holes with a length to diameter ratio of 2-3. MZS can drill deep holes with a length to diameter ratio of 3 to 5. Their characteristics are:
(1) The chisel edge is ground, the plunge is good, and the drilling accuracy is high;
(2) The chip flute is wide, the bottom of the trough is deep, and the chip removal is good;
(3) Adopting a triple front angle, easy to grind;
(4) Adopt a sharp, strong straight main blade;
(5) MZS type has internal cooling oil hole, suitable for difficult material processing and deep hole processing;
(6) AP15F coating is recommended for low and medium speed machining; GP20M coating is recommended for medium and high speed machining. The life of the drill using these two coatings is often 3 to 5 times longer than that of a typical cemented carbide drill;
(7) The minimum size of the internal cooling drill can be 2mm.
(8) MZE and MZS, there are also composite drill bits with chamfering.
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