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256:, is also extensively used in the production of cutting tools due to its exceptional hardness and wear resistance. Alumina cutting tools also have high thermal conductivity, which helps dissipate heat generated during cutting, minimizing thermal damage to both the tool and the workpiece. Additionally, alumina's chemical stability ensures that it does not react with materials being cut, preventing
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There is no material that shows all of these properties at the same time. Very hard materials, have lower toughness and break more easily. The following cutting tool materials are used:
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Harder than tool steels, but less tough. Can be used up to 900 °C. There are many sort of cemented carbides like ones made of
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Cutting tool materials must be harder than the material of the workpiece, even at high temperatures during the process.
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Kumar, A.S.; Durai, A.R. (2003). "Machinability of hardened steel using alumina based ceramic cutting tools".
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are used. The latter has higher toughness, but can't be used for machining steel, due to very high wear.
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They are relatively cheap and tough. Their hardness is sufficient to machine other steels.
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Trent, Wright: Metal
Cutting. Butterworth Heinemann, 2000, 4. edition, p. 132-250.
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They are even harder than cemented carbides but have lower toughness.
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The following properties are required for cutting tool materials:
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International
Journal of Refractory Metals and Hard Materials
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Carbon tool steels: They lose their hardness at 200 °C
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and maintaining the purity of the finished product.
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271:: It is nearly as hard as diamond.
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167:small propensity for
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368:Chem. Mater
194:Tool steels
59:introducing
426:Categories
284:References
164:resistance
106:drill bits
67:April 2024
432:Machining
169:diffusion
162:oxidation
149:toughness
110:tool bits
102:machining
94:materials
320:July 12,
173:adhesion
135:hardness
343:(3–4).
275:diamond
250:Alumina
232:cermets
122:punches
55:improve
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118:knives
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