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single-spindle automatic lathes

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Published: 01 January 1989
Fig. 2 Single-spindle automatic lathes. (a) Cam-fed front slide. (b) Leadscrew-fed front slide More
Image
Published: 01 January 1989
Fig. 3 Automatic loading device for a single-spindle automatic lathe More
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002147
EISBN: 978-1-62708-188-7
...Abstract Abstract This article provides information on the operating principle, tool material and design changes, and safety and protection of various multifunction machines as well as the cutting fluids used. These include single-spindle automatic lathes, manual turret lathes, single-spindle...
Image
Published: 01 January 1989
Fig. 17 Cold form tapping of a blind hole in an alloy C51000 mounting stud. Dimensions in figure given in inches Machine Single-spindle automatic lathe Tool Fluteless tap, 3.18 mm (0.125 in.) in diameter Speed, at 3770 rev/min, m/min (sfm) 38 (123) Cutting fluid Light mineral More
Image
Published: 01 January 1989
Fig. 8 Fundamentals of a single-spindle automatic chucking machine (one type of automatic turret lathe) More
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
... the steps of a desired operation. Leading kinds of automatic turning machines are presented here under the classifications of automatic lathes, and single-spindle and multiple-spindle automatic bar and chucking machines. Automatic Lathes Automatic lathes have the basic units of simple lathes: bed...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002143
EISBN: 978-1-62708-188-7
... control devices. Automatic Machines Because of the longer setup time and higher running cost involved, automatic machines (automatic turret lathes, single-spindle or multiple-spindle automatic bar or chucking machines, or other automatic equipment) are used only for medium or high production...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002149
EISBN: 978-1-62708-188-7
... is expected to perform, such as numerical control (NC) machines, milling machines, multispindle screw machines, lathes, machining centers, single-purpose dedicated machines, transfer lines, grinders, tapping and threading machines, broaching machines, and so on. The type of sensor used depends...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001231
EISBN: 978-1-62708-170-2
..., and it is generally true that today's precision engineering will be tomorrow's general engineering. At present, the highest spindle speeds in conventional lathes are 2200 to 2400 rpm. For precision finishing cuts on steel and materials with similar properties, the highest spindle speeds should range from 3000 to 5000...
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
... of turret lathes, enable a further increase in production of parts that are made from bars or tubes. Production can be still further increased by the use of a multiple-spindle automatic bar machine, designed so that every tool is in operation at the same time, but on a different piece of material...
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
... than the use of single-point tools for producing a circular face groove. Example 2: Trepanning Versus Single-Point Plunge Cutting Originally, the 73 mm (2 7 8 in.) groove in the 4140 steel part shown in Fig. 4 was produced in roughing and finishing operations on a lathe, using single...
Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0003983
EISBN: 978-1-62708-185-6
... in the die. Workpiece surface finish is generally best when its rotation is about 80% of the rotating spindle speed. Resistance to rotation is manual when the swager is hand fed; mechanical means are used with automatic feeds. Machines Rotary swaging machines are classified as standard rotary...
Book Chapter

By Mark Johnson
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002139
EISBN: 978-1-62708-188-7
... of operations in an automatic turret lathe or in a single-spindle or multiple-spindle bar or chucking machine. However, because of the relatively long setup time required for these machines, they are usually efficient only for large production lots. Moreover, tapping efficiency may depend on the number of other...
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
... In selecting a machine, the following options should be considered for their suitability to the specific job: Machine type: Manual control, numerical control; single spindle or multiple spindle Machine calibrations: Speed and feed range, manual or automatic machine positioning, and automatic...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002144
EISBN: 978-1-62708-188-7
... hold and rotate a cutter while allowing a workpiece to be fed into the cutter, or vice versa. Figure 1 illustrates the wide range of cutter configurations available for use in milling operations. For example, milling can be done in single-spindle or multiple-spindle bar and chucking machines...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002138
EISBN: 978-1-62708-188-7
... presses, lathes, boring machines, and automatic bar or chucking machines, depending on the degree of quality and accuracy required. The process is applicable to metals softer than about 40 HRC, although diamond burnishing machines are available for finishing materials harder than 40 HRC. However, metals...
Book Chapter

By Pel Lynah
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002154
EISBN: 978-1-62708-188-7
... be lapped or when more efficient equipment is not available. Another and somewhat faster method of flat lapping single pieces makes use of a single-spindle vertical drill press. The lap, which is stationary, is mounted on the stand of the drill press. The workpiece is held by the spindle, which rotates...
Book Chapter

By Yoram Koren
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002174
EISBN: 978-1-62708-188-7
... and the turning center, which incorporate the functions of many machines into a single device. A machining center can access multiple tools to perform such operations as milling, drilling, boring, and tapping ( Fig. 2 ). A turning center is a powerful lathe equipped with an automatic tool changer. Other types...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002142
EISBN: 978-1-62708-188-7
... that often the only fixture required for manual loading is a spring-loaded work stop to provide correct axial position. Lathes and Automatic Machines Radial infeed rolling can be done in lathes and automatic bar machines equipped with single-roll or double-roll radial threading attachments...
Book Chapter

Series: ASM Handbook
Volume: 14A
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v14a.a0004012
EISBN: 978-1-62708-185-6
... dies, whereas cylindrical two-die machines or other types of threading equipment may require expensive or unwieldy fixturing. Radial-feeding single-roll or double-roll attachments are used to best advantage for rolling threads at the collet end of pieces being machined in a lathe or automatic bar...