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ASME B5.52-2003 (R2019) Power Presses: General Purpose, Single-Point Gap Type
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ASME B5.52-2003
(Revision of ANSI B5.52M-1980)
Power Presses: General Purpose, Single-Point Gap Type
AN A MERICAN NA TIONAL S T AND ARD
ASME B5.52-2003
(Revision of ANSI B5.52M-1980)
Power Presses: General Purpose, Single-Point Gap Type
AN AMERICAN NA TIONAL S T AND ARD
Three Park Avenue • New York, NY 10016
Date of Issuance: December 15, 2004
This Standard will be revised when the Society approves the issuance of a new edition. There will be no addenda or written interpretations of the requirements of this Standard issued to this edition.
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This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Standards Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunity to participate. The proposed code or standard was made available for public review and comment that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.
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without the prior written permission of the publisher.
The American Society of Mechanical Engineers Three Park Avenue, New York, NY 10016-5990
Copyright © 2004 by
THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS
All rights reserved Printed in U.S.A.
CONTENTS
Foreword .............................................................................. Committee Roster ..................................................................... Correspondence With the B5 Committee ................................................ | iv v vi |
1 Scope, Purpose, and Application ................................................... | 1 |
2 Definitions and Terminology ....................................................... | 1 |
3 Metric/U.S. Customary Rationalization .............................................. | 1 |
4 Press Characteristics .............................................................. | 1 |
5 Tooling Related Characteristics ..................................................... | 3 |
6 Acceptance Conditions ............................................................. | 10 |
7 Health and Safety ................................................................. | 13 |
8 Information and Instructions ....................................................... | 13 |
9 Declaration of Manufacturer Compliance ............................................ | 15 |
10 Reference Standards .............................................................. | 16 |
Figures
Examples of Press Types 2
Squareness 12
Linear Frame Deflection 13
Angular Frame Deflection 13
Press Data Plate: Mechanical Press 14
Press Data Plate: Hydraulic Press 14
Counterbalance Data Plate 14
Die Cushion Data Plate 15
Press Designation System 15
Press Capability Graph (Metric) 16
Press Capability Graph (U.S. Customary) 17
Tables
Standard Capacity Ratings 3
Standard Rating Points 3
Usable Flywheel Energy 3
Stroke and Shutheight Related Dimensions 4
Bed Area Related Dimensions 5
Bolster Related Dimensions 6
Bolster Mounting Slot Dimensions 7
Bolster Mounting Bolts: Bench Presses 8
Bolster Mounting Bolts 9
Slide Related Dimensions: Bench Presses 20 kN (2 tons) Through 160 kN
(18 tons) 10
Slide Related Dimensions: Presses 160 kN (18 tons) Through 2 500 kN
(280 tons) 11
Pressure Pin 11
Pressure Pinhole Patterns 12
Parallelism 12
Mandatory Appendices
Metric/U.S. Customary Conversion 19
Mechanical Power Press Capacity 20
Usable Flywheel Energy 22
FOREWORD
Recognizing the need for a standard for mechanical power presses, The American Society of Mechanical Engineers’ Committee on Machine Tools and Components (B5) reestablished Technical Committee 30 in December 1973 to develop an American National Standard addressing the interchangeability of bolsters, press tooling, and mounting provisions between general purpose presses of comparable bed size, capacity, and type.
The B5-TC30 membership consists of a balance between manufacturers, users, accessory suppli- ers, and others associated with power presses. The committee’s work was based on the JIC (Joint Industry Conference) Press Room Standards, once the most widely used document, to develop a standard for mechanical power presses, and on basic data submitted by U.S. manufacturers of power presses.
On December 22, 1980, the American National Standards Institute approved ANSI B5.52M- 1980, Mechanical Power Presses General Purpose Single Point, Gap Type (Metric). This standard was reaffirmed in 1994.
On April 19, 2000, the committee completed drafting of ASME B5.61-2003, Power Presses: General Purpose, Single Action, Straight Side Type, and prepared to submit it for approval to the American National Standards Institute. The expanded scope and revised format of this document led to the committee decision to revise ANSI B5.52M-1980 to bring it into conformance with the new format. The decision was made to include hydraulic and pneumatic power presses in the revised standard for general purpose, single-point gap type presses. ASME B5.52-2003 was approved by ANSI on July 7, 2003.
ASME B5 STANDARDS COMMITTEE
Machine Tools — Components, Elements, Performance, and Equipment
(The following is the roster of the Committee at the time of approval of this Standard.)
OFFICERS
C. T. Wax, Chair
J. R. Bird, Secretary
B5 COMMITTEE PERSONNEL
J. R. Bird, Secretary, The American Society of Mechanical Engineers
A. M. Bratkovich, The Association for Manufacturing Technology
C. J. Gregorovich, C. J. Gregorovich & Associates
J. Homsey, Boeing
D. King, Parlec
D. L. Lewis
C. D. Lovett, National Institute of Standards and Technology
G. R. Rawlinson, Rawlinson & Associates
W. S. Roorda, Alcona Associates
H. Soons, National Institute of Standards and Technology
R. C. Spooner, Powerhold, Inc.
C. T. Wax, Scully-Jones Corp.
TECHNICAL COMMITTEE 30 — POWER PRESSES
K. J. Koroncey, Chair, General Motors Corp.
T. Werding, Secretary, Schuler Hydroforming Inc.
R. Boge, Smedberg Machine Corp.
A. M. Bratkovich, The Association for Manufacturing Technology
G. Clouse, Oak Products, Inc.
D. L. Cota, Benchmaster Inc.
C. J. Gregorovich, C. J. Gregorovich & Associates
W. S. Roorda, Alcona Associates
A. Sambel, Schuler Inc.
E. D. Steinke, The Minster Machine Co.
L. A. Wood, Whirlpool Corp.
CORRESPONDENCE WITH THE B5 COMMITTEE
General. ASME Standards are developed and maintained with the intent to represent the consensus of concerned interests. As such, users of this Standard may interact with the Committee by proposing revisions and attending Committee meetings. Correspondence should be addressed to:
Secretary, B5 Standards Committee
The American Society of Mechanical Engineers Three Park Avenue
New York, NY 10016-5990
Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically.
The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation. Attending Committee Meetings. The B5 Standards Committee regularly holds meetings, which are open to the public. Persons wishing to attend any meeting should contact the
Secretary of the B5 Standards Committee.
ASME B5.52-2003
POWER PRESSES: GENERAL PURPOSE, SINGLE-POINT GAP TYPE
SCOPE, PURPOSE, AND APPLICATION
Scope
This Standard applies to hydraulic and mechanical power presses having a one-piece frame that guides the slide and supports the bolster, adjustable bed, or horn. The frame is configured to provide unrestricted access to the front and sides of the die space. By means of dies or tooling attached to the slide and bolster or horn, these machines are used to shear, punch, form, or assemble metal or other materials.
This Standard includes only the following types of presses:
bench
open back inclinable (OBI)
open back stationary (OBS)
adjustable bed/horn
See Fig. 1 for examples of press types.
Purpose
The purpose of this Standard is to define and describe gap frame power presses, and their interface, to permit interchangeability of bolsters, dies, and tooling compo- nents between presses of comparable type, size, and capacity.
Application
Any power press described as an American National Standard power press shall comply with the applicable requirements of this Standard.
DEFINITIONS AND TERMINOLOGY
Terms used in this Standard are defined in ASME B5.49.
METRIC/U.S. CUSTOMARY RATIONALIZATION
Metrication
All units of dimension and capacity stated herein are in accordance with ASME B5.51M. Approximate U.S. customary units shown in parentheses are for reference only. Wherever used in this Standard, the unit tons denotes U.S. tons.
Metric/U.S. Customary Conversion
Appendix I provides conversion multipliers applica- ble to this Standard.
PRESS CHARACTERISTICS
Rated Capacity
See Table 1.
Rating Points (Mechanical Power Presses)
See Table 2.
Drive Design. Drive design shall be based on providing the torque that produces the rated press capacity at the rating point.
Press Capacity. Press capacity at points other than the rating point are shown
in Table II-1 for presses rated at 1.6 mm (1⁄16 in.)
in Table II-2 for presses rated at 3.2 mm (1⁄8 in.)
in Table II-3 for presses rated at 6.3 mm (1⁄4 in.)
Energy Capacity (Mechanical Power Press)
Function of the Flywheel. The energy required for performing press operations is stored in the flywheel. During the working portion of the press cycle, the fly- wheel slows down as it supplies the required energy to the drive train.
Function of the Drive Motor. The drive motor restores flywheel energy during the nonworking portion of the press cycle, which may include the interval between press cycles for presses operating in single stroke modes.
Drive Motor Selection. The selection of the drive motor is dependent upon the energy requirements. Fac- tors determining the energy requirements are the
rated capacity
press speed (strokes per minute)
press stroke
Based on the optimum slide velocity for the material being worked, a longer stroke press will be required to operate at a slower speed than a shorter stroke press. The longer the stroke, the deeper the draw that can be made, and the greater the energy required to sustain
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