SURFACE COATED CUTTING TOOL

SURFACE COATED CUTTING TOOL

To provide a surface coated cutting tool having high hardness and high toughness.SOLUTION: In the surface coated cutting tool, a coating layer has an average thickness of 1.0-20.0 μm, whose average composition is represented by the formula: (TiaX1bX2c)(CdNe)(X1 is Zr or Hf and X2 is V or Nb or Ta):...

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Hauptverfasser: TATSUOKA SHO, TOJO SHUNSUKE
Format: Patent
Sprache:eng ; jpn
Schlagworte:
BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
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creator TATSUOKA SHO
TOJO SHUNSUKE
description To provide a surface coated cutting tool having high hardness and high toughness.SOLUTION: In the surface coated cutting tool, a coating layer has an average thickness of 1.0-20.0 μm, whose average composition is represented by the formula: (TiaX1bX2c)(CdNe)(X1 is Zr or Hf and X2 is V or Nb or Ta): 0.05≤a/(a+b+c)≤0.60 0.05≤b/(a+b+c)≤0.60 0.05≤c/(a+b+c)≤0.60 0.20≤d/(d+e)≤0.80 0.20≤e/(d+e)≤0.80 Sconfig=-R/2{[a/(a+b+c)]ln[a/(a+b+c)]+[b/(a+b+c)]ln[b/(a+b+c)]+[c/(a+b+c)]ln[c/(a+b+c)]+[d/(d+e)]ln[d/(d+e)]+[e/(d+e)]ln[e/(d+e)]}≥0.75R (R is gas constant and ln is natural logarithm), which includes crystal grain having a NaCl-type face-centered cubic structure.SELECTED DRAWING: Figure 2 【課題】高硬度かつ高靱性の表面被覆切削工具の提供。【解決手段】被覆層は、平均厚さが１．０～２０．０μｍで、式：（ＴｉａＸ１ｂＸ２ｃ）（ＣｄＮｅ）（Ｘ１はＺｒまたはＨｆ、Ｘ２はＶまたはＮｂまたはＴａ）で表したとき、０．０５≦ａ／（ａ＋ｂ＋ｃ）≦０．６００．０５≦ｂ／（ａ＋ｂ＋ｃ）≦０．６００．０５≦ｃ／（ａ＋ｂ＋ｃ）≦０．６００．２０≦ｄ／（ｄ＋ｅ）≦０．８００．２０≦ｅ／（ｄ＋ｅ）≦０．８０Ｓｃｏｎｆｉｇ＝－Ｒ／２｛［ａ／（ａ＋ｂ＋ｃ）］ｌｎ［ａ／（ａ＋ｂ＋ｃ）］＋［ｂ／（ａ＋ｂ＋ｃ）]ｌｎ［ｂ／（ａ＋ｂ＋ｃ）］＋［ｃ／（ａ＋ｂ＋ｃ）］ｌｎ［ｃ／（ａ＋ｂ＋ｃ）］＋［ｄ／（ｄ＋ｅ）］ｌｎ［ｄ／（ｄ＋ｅ）］＋［ｅ／（ｄ＋ｅ）］ｌｎ［ｅ／（ｄ＋ｅ）］｝≧０．７５Ｒ（Ｒは気体定数、ｌｎは自然対数）で、ＮａＣｌ型面心立方構造を有する結晶粒を含む表面被覆切削工具【選択図】図２
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TOJO SHUNSUKE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2023147800A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2023</creationdate><topic>BORING</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>TRANSPORTING</topic><topic>TURNING</topic><toplevel>online_resources</toplevel><creatorcontrib>TATSUOKA SHO</creatorcontrib><creatorcontrib>TOJO SHUNSUKE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TATSUOKA SHO</au><au>TOJO SHUNSUKE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>SURFACE COATED CUTTING TOOL</title><date>2023-10-13</date><risdate>2023</risdate><abstract>To provide a surface coated cutting tool having high hardness and high toughness.SOLUTION: In the surface coated cutting tool, a coating layer has an average thickness of 1.0-20.0 μm, whose average composition is represented by the formula: (TiaX1bX2c)(CdNe)(X1 is Zr or Hf and X2 is V or Nb or Ta): 0.05≤a/(a+b+c)≤0.60 0.05≤b/(a+b+c)≤0.60 0.05≤c/(a+b+c)≤0.60 0.20≤d/(d+e)≤0.80 0.20≤e/(d+e)≤0.80 Sconfig=-R/2{[a/(a+b+c)]ln[a/(a+b+c)]+[b/(a+b+c)]ln[b/(a+b+c)]+[c/(a+b+c)]ln[c/(a+b+c)]+[d/(d+e)]ln[d/(d+e)]+[e/(d+e)]ln[e/(d+e)]}≥0.75R (R is gas constant and ln is natural logarithm), which includes crystal grain having a NaCl-type face-centered cubic structure.SELECTED DRAWING: Figure 2 【課題】高硬度かつ高靱性の表面被覆切削工具の提供。【解決手段】被覆層は、平均厚さが１．０～２０．０μｍで、式：（ＴｉａＸ１ｂＸ２ｃ）（ＣｄＮｅ）（Ｘ１はＺｒまたはＨｆ、Ｘ２はＶまたはＮｂまたはＴａ）で表したとき、０．０５≦ａ／（ａ＋ｂ＋ｃ）≦０．６００．０５≦ｂ／（ａ＋ｂ＋ｃ）≦０．６００．０５≦ｃ／（ａ＋ｂ＋ｃ）≦０．６００．２０≦ｄ／（ｄ＋ｅ）≦０．８００．２０≦ｅ／（ｄ＋ｅ）≦０．８０Ｓｃｏｎｆｉｇ＝－Ｒ／２｛［ａ／（ａ＋ｂ＋ｃ）］ｌｎ［ａ／（ａ＋ｂ＋ｃ）］＋［ｂ／（ａ＋ｂ＋ｃ）]ｌｎ［ｂ／（ａ＋ｂ＋ｃ）］＋［ｃ／（ａ＋ｂ＋ｃ）］ｌｎ［ｃ／（ａ＋ｂ＋ｃ）］＋［ｄ／（ｄ＋ｅ）］ｌｎ［ｄ／（ｄ＋ｅ）］＋［ｅ／（ｄ＋ｅ）］ｌｎ［ｅ／（ｄ＋ｅ）］｝≧０．７５Ｒ（Ｒは気体定数、ｌｎは自然対数）で、ＮａＣｌ型面心立方構造を有する結晶粒を含む表面被覆切削工具【選択図】図２</abstract><oa>free_for_read</oa></addata></record>
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subjects BORING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
TRANSPORTING
TURNING
title SURFACE COATED CUTTING TOOL
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