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Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002135
EISBN: 978-1-62708-188-7
... can be obtained as standard tools up to 90 mm (3 1 2 in.) in diameter, and as special-order tools in even larger sizes (spade drills are usually cost effective for sizes above 38 mm, or 1 1 2 in., and have reportedly been used in sizes up to 380 mm, or 15 in.). The type of shank...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003042
EISBN: 978-1-62708-200-6
... are useful for straight-line cuts and provide long tool life. Carbide router bits with a diamond-shaped chisel cut ( Fig. 4 ) and diamond-coated router tools are very effective in producing good finishes and can be used to perform any trimming operation. The former are highly recommended because...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002194
EISBN: 978-1-62708-188-7
... and portable equipment are suggested. Tool life is long. Good finishes are obtained with carbide router bits that have a diamond-shaped chisel cut ( Fig. 4 ) and with diamond-coated router tools. They can also be used in any trimming operation. A finish of better than 3 μm (125 μin.) in roughness can...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004139
EISBN: 978-1-62708-184-9
..., or clogging from small bits of debris collecting in the tubes. Excessive water velocities can cause erosion and impingement damage. Velocities of 1.5 to 1.8 m/s (5 to 6 ft/s) for seawater applications are excessive for copper, but most other commonly used alloys perform well up to 2.7 m/s (9 ft/s). Stainless...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002131
EISBN: 978-1-62708-188-7
... gun drilling forms only chips As a means of producing holes 50 mm (2 in.) in diameter or larger (especially holes whose depth is eight or more diameters), Trepanning offers the following advantages over spade or twist drilling, with their allied operations: Closer tolerances can be met...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002130
EISBN: 978-1-62708-188-7
... 3 4 ) 68 (2 11 16 ) Size of tool bit, mm (in.) 19 × 19 ( 3 4 × 3 4 ) 19 × 19 ( 3 4 × 3 4 ) 13 × 13 ( 1 2 × 1 2 ) Lead angle 45° 15° 15° Tool material Carbide Carbide Carbide Chip breaker dimensions...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002179
EISBN: 978-1-62708-188-7
...°. Source: Ref 22 Drilling Operations Drilling of Low-Carbon Steel Drilling ( Fig. 23 ) with a twist or spade drill is a highly complex deformation and shearing process. Conditions along the cutting edges are similar to those in turning except that shear stresses and temperatures reach...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002129
EISBN: 978-1-62708-188-7
..., with the exception of spade-drilling operations. Capacities of lathes range from fractional horsepower to more than 150 kW (200 hp) for vertical boring mills (see the article “Boring” in this Volume). The effects of composition and hardness of the work metal on power requirements for turning...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002184
EISBN: 978-1-62708-188-7
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.9781627081993
EISBN: 978-1-62708-199-3