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tool life
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Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002120
EISBN: 978-1-62708-188-7
... and its consequences. The article details the modeling of tool wear by using the Taylor's tool life equation. The article concludes with information on the requirements of a successful tool life testing program: the test plan objective, designing the test, conducting the test, analyzing the results...
Abstract
Cutting tool wear is a production management problem for manufacturing industries. It occurs along the cutting edge and on adjacent surfaces. This article describes steady-state wear mechanisms, tertiary wear mechanisms, and tool replacement. It provides information on tool failure and its consequences. The article details the modeling of tool wear by using the Taylor's tool life equation. The article concludes with information on the requirements of a successful tool life testing program: the test plan objective, designing the test, conducting the test, analyzing the results, and applying the results.
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Published: 01 January 1989
Fig. 20 Tool life diagrams of coated inserts. Tool life is based on a 0.25 mm (0.01 in.) flank wear criterion. (a) Turning 1045 steel with a 2.5 mm (0.1 in.) depth of cut and a 0.40 mm/rev (0.016 in./rev) feed rate. (b) Turning SAE G4000 gray cast iron with a 2.5 mm (0.1 in.) depth of cut
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Published: 01 January 1990
Fig. 20 Tool life diagrams of coated inserts. Tool life is based on a 0.25 mm (0.01 in.) flank wear criterion. (a) Turning 1045 steel with a 2.5 mm (0.1 in.) depth of cut and a 0.40 mm/rev (0.016 in./rev) feed rate. (b) Turning SAE G4000 gray cast iron with a 2.5 mm (0.1 in.) depth of cut
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Published: 01 January 1990
Fig. 8 Effect of hardness on tool life. Relative tool life as a function of relative hardness for three tool materials; the value of x , 1.72, used in constructing these curves is a conservatively estimated maximum. Source: Ref 11
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Published: 01 January 1989
Fig. 40 Tool life comparison of a coated and an uncoated carbide tool. Constant tool life (15 min) plot for an uncoated and a TiC-TiCN-TiN-coated C5 grade in turning SAE 1045 steel. The depth of cut was 2.5 mm (0.100 in.).
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Published: 30 September 2015
Fig. 9 Influence of carbon addition on tool life of Distaloy AE. Tool material: CNMG 120408, GC 1025. Cutting conditions: feed = 0.1 mm/rev (0.004 in./rev); depth of cut = 0.5 mm (0.02 in.); criteria, V b = 0.3 mm (0.012 in.); dry
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Published: 01 December 2008
Fig. 31 Free carbides in tool structure can cause a large reduction in tool life but affect only a relatively small increase in hardness.
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Published: 01 January 1990
Fig. 43 Tool life comparison of a coated and an uncoated carbide tool. Constant tool life (15 min) plot for an uncoated P40 (C5) carbide and coated P40 (C5) carbides in turning SAE 1045 steel. The depth of cut was 2.5 mm (0.100 in.).
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Published: 01 January 1990
Fig. 6 Effect of hardness on tool life curves. Workpiece: 4135 steel. Tool material: cobalt-tungsten (10% Co, 10% W) high-speed steel per Japanese designation SKH57. Machining conditions: depth of cut = 2.0 mm (0.08 in.); feed rate = 0.2 mm/rev (0.008 in./rev). Source: Ref 9
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Published: 01 January 1990
Fig. 15 Effect of hardness on tool life curves. Workpiece: 4340 steel. Tool material: C6 carbide. Source: Ref 25 Sample Hardness, HB Heat treatment ○ A 206 Spheroidized ● B 221 Annealed Δ C 321 Normalized ▲ D 400 Hardened and tempered □ E 500 Hardened
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Published: 01 January 1994
Fig. 6 Tool life of conventionally heat-treated and laser-melted tool bits. (a) M2 tool steel. (b) M35 tool steel. Source: Ref 18
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Published: 01 January 1993
Fig. 22 Joint designs to optimize strength and tool life of brazed carbide tool assemblies. In each set, the right-most drawing represents an improved design.
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Published: 01 January 1990
Fig. 37 Effect of carbon and nitrogen contents on machinability in a tool life test for a free-machining 18Cr-9Ni-3Mn austenitic stainless steel. Source: Ref 85
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Published: 01 January 1990
Fig. 39 Comparison of tool life for a duplex stainless steel (S32950), a high-nitrogen austenitic stainless steel (S20910), and a lower-nitrogen austenitic stainless steel (S31600). Tool life is measured as the distance traveled along a 25 mm (1.0 in.) diam bar until tool failure. Shaded areas
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Published: 01 January 1989
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Published: 01 January 1989
Fig. 17 Effect of calcium content on carbide tool life for an austenitic stainless steel. Source: Ref 37
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Published: 01 January 1989
Fig. 18 Effect of phosphorus on cutting speed (tool life) for a 0.19S-18Cr-8Ni austenitic stainless steel compared to a similar steel containing only sulfur or selenium. Source: Ref 23
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Published: 01 January 1989
Fig. 23 Effect of carbon and nitrogen contents on machinability in a tool life test for a free-machining 18Cr-9Ni-3Mn austenitic stainless steel. Source: Ref 49
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Published: 01 January 1989
Fig. 25 Comparison of tool life for a duplex stainless steel (S32950), a high-nitrogen austenitic stainless steel (S20910), and a lower-nitrogen austenitic stainless steel (S31600). Tool life is measured as the distance traveled along a 25 mm (1.0 in.) diam bar until tool failure. Shaded areas
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Published: 01 January 1989
Fig. 8 Change of method that improved machinability and tool life in forming recess in wood-drill shanks made of hot-rolled and annealed L1 tool steel. Dimensions in figure given in inches. Specimens for micrographs were etched in 2% nital. 2000× Weight of blank, kg (lb) 0.257 (0.566
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