PROSES PEMESINAN DASAR LANJUT Lathe Mach

PROSES PEMESINAN
DASAR LANJUT
Lathe Machine
Content

Content
1. Lathe Cutting Operations
2. Dimensional Tolerances
3. Lathe Components
4. Turning Operation
5. Right-Hand Cutting Tool
6. Turning Parameter and Formula
7. Forces acting in cutting tool

8. Range of applicable cutting speed
9. General Recommendations
10. Typical Capacities and Workpiece Dimensions

Lathe Cutting
Operations
Miscellaneous cutting operations that

can be performed on a lathe. Note
that all parts are circular – a property
known as axisymmetry. The tools
used, their shape, and the processing
parameters are described throughout
this chapter.

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Characteristics of Machining Processes and Typical
Dimensional Tolerances

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Kalpakjian and Steven R. Schmid.
ISBN 0-13-148965-8. © 2006
Pearson Education, Inc., Upper
Saddle River, NJ. All rights

Turning Operation

Figure 23.3 Schematic illustration of the basic turning operation, showing depth-of-cut, d;
feed, f; and spindle rotational speed, N in rev/min. Cutting speed is the surface speed of the
workpiece at the tool tip.

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Lathe

Figure . General view of a typical lathe, showing various components. Source:
Courtesy of Heidenreich & Harbeck.

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Designations for a Right-Hand
Cutting Tool

Figure 23.4 Designations for a right-hand cutting tool. Right-hand means the tool travels
form right to left, as shown in Fig. 23.3.

General Recommendations for

Tool Angles in Turning

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Forces Acting on a Cutting Tool
in Turning

Figure 23.5 Forces acting on a cuttin tool in turning, Fc is the cutting force, Ft is the
thrust of feed force (in the direction of feed), and Fr is the radial force that tends to
push the tool away from the workpiece being machined.

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Range of Applicable Cutting Speeds and Feeds for Tool Materials

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Figure 23.6 The range of applicable

cutting speeds and feeds for a
variety of tool materials.

Manufacturing, Engineering &
Technology, Fifth Edition, by Serope
Kalpakjian and Steven R. Schmid.
ISBN 0-13-148965-8. © 2006
Pearson Education, Inc., Upper

General Recommendations for Turning Operations
Manufacturing, Engineering &
Technology, Fifth Edition, by Serope
Kalpakjian and Steven R. Schmid.
ISBN 0-13-148965-8. © 2006
Pearson Education, Inc., Upper

General Recommendations for Turning Operations, con’t.
Manufacturing, Engineering &
Technology, Fifth Edition, by Serope
Kalpakjian and Steven R. Schmid.

ISBN 0-13-148965-8. © 2006
Pearson Education, Inc., Upper

General Recommendations for Turning Operations, con’t

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Manufacturing, Engineering &
Technology, Fifth Edition, by Serope
Kalpakjian and Steven R. Schmid.
ISBN 0-13-148965-8. © 2006
Pearson Education, Inc., Upper

General Recommendations for Cutting Fluids for Machining

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Manufacturing, Engineering &
Technology, Fifth Edition, by Serope
Kalpakjian and Steven R. Schmid.
ISBN 0-13-148965-8. © 2006

Pearson Education, Inc., Upper

Typical Capacities and Maximum Workpiece Dimensions for
Machine Tools

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Manufacturing, Engineering &
Technology, Fifth Edition, by Serope
Kalpakjian and Steven R. Schmid.
ISBN 0-13-148965-8. © 2006
Pearson Education, Inc., Upper