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A platform for research: civil engineering, architecture and urbanism
SINTERED COMPACT, CUTTING TOOL USING THE SINTERED COMPACT, AND METHOD FOR PRODUCING THE SINTERED COMPACT
PROBLEM TO BE SOLVED: To provide a sintered compact having excellent wear resistance even under high speed cutting conditions, a tool using the sintered compact, and a method for producing the sintered compact.SOLUTION: Provided is a sintered compact obtained by filling a mixed grain group containing a first grain group including AlCrN grains having a cubic crystal rock salt type structure represented by formula (1), a second grain group including at least one kind selected from aluminum, zirconium yttrium, and the oxide or acid nitride of magnesium or hafnium by 5 to 90 vol.% into a capsule made of tantalum, maintaining the same at 1,350°C for 15 min under 7 GPa and performing sintering using a press machine. Further, the sintered compact contains a third grain group including cubic crystal type boron nitride by 20 to 70 vol.%:AlCrN (1)(x satisfies 0.2≤x≤0.8).SELECTED DRAWING: Figure 1
【課題】高速切削条件下においても、優れた耐摩耗性を有する焼結体、焼結体を用いた工具および焼結体の製造方法の提供。【解決手段】下記式（１）で表される立方晶岩塩型構造を有するＡｌＣｒＮ粒子を含む第１粒子群と、アルミニウム、ジルコニウム、イットリウム、マグネシウム或いはハフニウムの酸化物または酸窒化物から選択される少なくとも１種の第１化合物の粒子を含む第２粒子群５〜９０体積％とを有する混合粒子群をタンタル製のカプセルに充填し、プレス機を用いて、圧力７ＧＰａ及び温度１３５０℃で１５分間維持して焼結させた焼結体。更に立方晶型窒化ホウ素を含む第３粒子群を２０〜７０体積％有する焼結体。Ａｌ（１−ｘ）ＣｒｘＮ・・・（１）（ｘは０．２≦ｘ≦０．８）【選択図】図１
SINTERED COMPACT, CUTTING TOOL USING THE SINTERED COMPACT, AND METHOD FOR PRODUCING THE SINTERED COMPACT
PROBLEM TO BE SOLVED: To provide a sintered compact having excellent wear resistance even under high speed cutting conditions, a tool using the sintered compact, and a method for producing the sintered compact.SOLUTION: Provided is a sintered compact obtained by filling a mixed grain group containing a first grain group including AlCrN grains having a cubic crystal rock salt type structure represented by formula (1), a second grain group including at least one kind selected from aluminum, zirconium yttrium, and the oxide or acid nitride of magnesium or hafnium by 5 to 90 vol.% into a capsule made of tantalum, maintaining the same at 1,350°C for 15 min under 7 GPa and performing sintering using a press machine. Further, the sintered compact contains a third grain group including cubic crystal type boron nitride by 20 to 70 vol.%:AlCrN (1)(x satisfies 0.2≤x≤0.8).SELECTED DRAWING: Figure 1
【課題】高速切削条件下においても、優れた耐摩耗性を有する焼結体、焼結体を用いた工具および焼結体の製造方法の提供。【解決手段】下記式（１）で表される立方晶岩塩型構造を有するＡｌＣｒＮ粒子を含む第１粒子群と、アルミニウム、ジルコニウム、イットリウム、マグネシウム或いはハフニウムの酸化物または酸窒化物から選択される少なくとも１種の第１化合物の粒子を含む第２粒子群５〜９０体積％とを有する混合粒子群をタンタル製のカプセルに充填し、プレス機を用いて、圧力７ＧＰａ及び温度１３５０℃で１５分間維持して焼結させた焼結体。更に立方晶型窒化ホウ素を含む第３粒子群を２０〜７０体積％有する焼結体。Ａｌ（１−ｘ）ＣｒｘＮ・・・（１）（ｘは０．２≦ｘ≦０．８）【選択図】図１
SINTERED COMPACT, CUTTING TOOL USING THE SINTERED COMPACT, AND METHOD FOR PRODUCING THE SINTERED COMPACT
焼結体、焼結体を用いた切削工具および焼結体の製造方法
ISHII AKITO (author) / KUKINO AKIRA (author) / HARADA TAKASHI (author)
2016-05-12
Patent
Electronic Resource
Japanese
| European Patent Office | 2015
METHOD FOR PRODUCING SINTERED COMPACT AND SINTERED COMPACT
| European Patent Office | 2024