SAE-AMS-S-13165
ADOPTION NOTICE
SAE-AMS-S-13165, "SHOT PEENING OF METAL PARTS", was adopted on
19-FEB-98 for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Adopting Activity: Army Research Laboratory Weapons and Materials Research Directorate, Attn: AMSRL-WM-M, Aberdeen Proving Ground, MD
21005-5069. Copies of this document may be purchased from the Society of Automotive Engineers 400 Commonwealth Drive
Warrendale, Pennsylvania, United States, 15096-0001.
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___________________
Custodians:Adopting Activity:
Army - MR
Army - MR
Navy - AS
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Air Force - 11
AREA MFFP
DISTRIBUTION STATEMENT A:Approved for public release; distribution is unlimited.
SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.”
SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 1997 Society of Automotive Engineers, Inc.
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All rights reserved.Printed in U.S.A. QUESTIONS REGARDING THIS DOCUMENT:(412) 772-7154FAX: (412) 776-02432.APPLICABLE DOCUMENTS:
The following publications, of the issues in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein.
2.1U.S. Government Publications:
Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue,
Philadelphia, PA 19111-5094.
MIL-S-851Steel Grit, Shot, and Cut Wire Shot; and Iron Grit and Shot-Blast Cleaning and --``,,``,`,`,,,,,`,`,,``,,,``,,-`-`,,`,,`,`,,`---
Peening
MIL-S-5002Surface Treatments and Inorganic Coatings for Metal Surfaces of Weapon
Systems
MIL-G-9954Glass Beads, For Cleaning and Peening
MIL-STD-45662Calibration Systems Requirements
RR-S-366Sieves, T est
2.2SAE Publications:
Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.
J441Cut Wire Shot
J1830Ceramic Shot for Peening
3.REQUIREMENTS:
3.1Shot:
3.1.1Material: The shot used shall be made from cast iron, cast steel, cut steel wire (or stainless cut
wire), glass, or ceramic as specified or approved. The hardness shall be determined by any of the various methods applicable to small sections at loads determined to provide a reliable conversion to Rockwell C. Steel and iron shot shall conform to MIL-S-851. For steel parts over 200,000 psi tensile strength, use hard steel shot in the range 55-65 HRC or ceramic shot, hardness
comparable to 57-63 HRC, unless otherwise specified (see 6.14). Stainless steel cut wire shot, type 302 or 304 (condition B spring temper), and carbon steel cut wire shot shall conform to
SAE J441. Glass beads shall conform to MIL-G-9954 except for sieve analysis. Ceramic beads shall meet the requirements of SAE J1830.
3.1.2Size: Unless otherwise specified, the size of shot charged into the machine, whether new shot,
used shot, or reclassified shot, shall be at the option of the contractor and shall be as specified in table II (cast sizes), table III (cut wire sizes), table IV (glass bead sizes) or table V (ceramic bead sizes).
3.1.3Shape: The shot or beads shall be free from sharp edges and inspected for deformed shapes or
broken shapes when examined per 4.3.1, 4.3.3, and figure 7. Cut wire shot, if used, shall be
preused or burnished to eliminate sharp edges (see 6.17.1). A given sample size shall contain no more than the number of unacceptable deformed shapes as shown in figure 7, and defined in
table I below (see 3.3.9).
TABLE I. Maximum allowable number of unacceptable deformed shapes
金第梦想山
Cast Shot Sizes
Cut
Wire戒毒
密云地震
Sizes
Glass
Bead
Sizes
(Inches)
Ceramic
Bead
Sizes
(Inches)
Sample
Size
(Inches)
*Maximum Allowable
Number of
Unacceptable
Deformed Shapes
930—.132-.094— 1 x 1 8 780—.111-.079— 1 x 111 660CW-62.094-.066— 1 x 116 550CW-54.079-.056— 1 x 122 460CW-47.066-.047— 1 x 132 390CW-41.056-.039— 1 x 145 330CW-35.047-.03310.0461/2 x 1/216—CW-32——1/2 x 1/218 280CW-28.039-.0278—1/2 x 1/223 230CW-23.0331-.02340.0331/2 x 1/232
190CW-20.0278-.0197—1/2 x 1/245 170—.0234-.01650.0241/4 x 1/416 130—.0197-.0139—1/4 x 1/423 110—.0165-.01170.0171/4 x 1/432
70—.0139-.0098—1/4 x 1/445——.0117-.00830.0121/8 x 1/816——.0098-.0070—1/8 x 1/822——.0083-.00590.0081/8 x 1/831
*These numbers are approximations based on approximately 10% of the actual particle count in the given sample size.--` ` , , ` ` , ` , ` , , , , , ` , ` , , ` ` , , , ` ` , , -` -` , , ` , , ` , ` , , ` ---
3.2Equipment:
3.2.1Automatic shot peening: The machine used for shot peening shall provide means for propelling
shot by air pressure or centrifugal force against the work, and mechanical means for moving the work through the shot stream or moving the shot stream through the work in either translation or rotation, or both, as required. The machine shall be capable of reproducing consistently the shot peening intensities required. Except for wet glass bead peening (see 3.3.9), the equipment shall continuously remove broken or defective shot so that this shot will not be used for peening.
3.2.2Computer-controlled shot peening: When specified in the contract or purchase order (see 6.2 and
6.8), the machine used for shot peening shall be as in 3.2.1 and also shall be equipped with
computer aided monitoring equipment. This equipment shall continuously monitor critical process parameters through interaction with a sensing system. The media shall be metered to each nozzle a
nd wheel with the desired shot flow. Process parameters shall be as specified by the procuring activity (see 6.9). The machine shall be stopped immediately and corrective action shall be taken when any of the established process limits is violated. The electronic system used for monitoring and controlling shot peening shall include a data recording device which will mark (plot) process interruptions or inconsistencies, and shall be maintained for the purpose of providing a hard copy record.
3.3Procedure:
3.3.1Dimensions and condition of parts: Areas of parts to be shot peened shall be within dimensional
and surface finish requirements before peening. All heat treatment, machining and grinding shall be completed before shot peening. All fillets shall be formed, all burrs shall be removed, and all sharp edges and corners to be peened shall be provided with sufficient radii to result in complete coverage without any distortion prior to peening (see 6.15).
3.3.2Precleaning: Except as otherwise specified or permitted, all areas to be peened shall be cleaned in
accordance with MIL-S-5002. Procedures for stripping coatings shall be as specified or approved in the contract or on the applicable drawings.
野马车友会
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3.3.3Masking: Areas of the part or work piece and the dimensional tolerances of these areas which are
designated in the contract or applicable drawing to be free from any shot peening marks shall be suitably masked or otherwise handled to protect such surfaces from the shot stream or subsequent damage. Areas not requiring peening and not required to be masked shall be considered optional.
3.3.4Magnetic particle or penetrant inspection: Except as otherwise specified, when magnetic particle
or dye penetrant inspection is required, parts shall be subjected to such inspection before peening.
3.3.5Loading: Unless otherwise specified or permitted, parts shall be free from externally applied loads
or forces during shot peening.
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