1、MIL-STD-1873A MF 9979711 0088155 1 e- 90 -30 MIL-STD-187 3A( AT) 5 June 1985 Superseding (see 6.4) MILITARY STANDARD MASS FINISHING, PROCESS FOR . DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. NO DELIVERABLE DATA DOCUMENT AREA MFFP P- THIS DOCUMENT CONTAINS a PAGE
2、S Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_l_._l_ MIL-STD-3873A MF W 7777733 008835b 3 MIL-STD-l873A(AT) DEPARTMENT OF DEFENSE Washington, DC 20301 MASS FINISHING, PROCESS FOR 1. This Military Standard is approved for use by US Army Tank-Auto
3、motive Command, Department of the Army, and is available for use by all Departments and Agencies of the Department of Defense. 2. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: US Army Tank-Aut
4、omotive Command, ATTN: AMSTA-GSS, Warren, MI 48090, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document, or by letter. ii 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-FOR
5、EWORD This Military standard briefly describes mass finishing processes and their applications. I I I l. I I l l ! :e I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-.-. MIL -S T D - L 8 73ATIq9777 L L Or8 8 158 7 MIL-STD-l873A(AT) CONTENTS Page SC
6、OPE 1 Paragraph 1 . 1.1 Purpose . 1 1.2 Scope 1 1.3 Classification 1 . 2 . REFERENCE DOC.NTS 2 Issues of documents 2 2.1 2.2 Other publications . 2 3 . DEFINITIONS 3 3.1 Definitions . 3 3.2 Barrel finishing 3 3.3 Vibratory finishing 3 3.4 Centrifugal barrel finishing 3 Centrifugal disc finishing 3 .
7、 3.5 . 3.6 Spindle finishing I 3 4 . 4.1 4.1.1 41.2 4.1.3 4.1.3.1 4.1.3.2 4.1.3.3 4.2 4.3 4.3.1 4.3.1.1 4.3. 1 . le1 4.3.1.1.2 4.3.1.2 4.3.1.3 4.3.1.2.1 4.3.1.3.1 4.3.1.3.2 4.3.1.4 4.3.2 4.3.2.1 4.3.2.2 4.3.2.3 4.3.105 .- . GENERAL REQUIREMENTS . 4 equip men. 4 4 Barrel machines. conventional types
8、. Vibratory machines 4 Centrifugal machines 4 Disc process 4 Barrel process 4 Spindle process . 4 Materials . 4 Finishing compounds . 4 Cleaning compounds 5 5 Burnishing compounds 5 Abrasive compounds Other compounds . 5 Deburring compounds . 5 Compound functions 5 Compound introduction . 6 Finishin
9、g media . 6 Synthetic random media 6 6 Preformed resin-bonded media Auxiliary equipment . 4 Non-abrasive compounds 4 Grinding compounds 5 Rustproofing compounds 5 Preformed ceramic media . 6 iv . - .-= . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
10、,-4 I p ! I Paragraph 4.3.2.4 4.3.2.5 4.3.2.6 5 . 5.1 5.2 5.3 5.3.1 5.3.2 5.3.3 5.3.4 5.3.5 5.4 5.5 6 . 6.1 6.2 6.3 6.4 Figure 1 . 2 . . 3 . 4 . 5 . Table I . MIL-STD-l873A(AT) CONTENTS Steel media . Natural media . Agricultural media. DETAIL REQUIRE.NTS Selection of process Selection of media Barre
11、l operations . Cleaning Pre-inspection Burnishing Post-inspection . Process instructions and control Advantages and disadvantages Deburring NOTES Safety precautions Causes of difficulties in mass finishing Waste disposal . Supersession data . FIGURES Page 6 6 6 7 7 7 7 7 8 8 8 8 8 8 9 9 9 10 10 Barr
12、els. conventional types 12 Tub vibrators 13 Bowl vibrators . 14 Centrifugal disc machine . 15 Centrifugal barrel machine . 16 TABLES Advantages and disadvantages of mass finishing processes 11 V Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD
13、-L73A MF 9777711 OOBLbO SF 1. SCOPE 1.1 Purpose. This standard describes procedures, equipment types, and precautions to be considered in selection of methods for mass finishing .metallic and non-metallic parts. 1.2 Scope. This standard covers conventional mass finishing processes currently in use.
14、1.3 Classification. Basic established mass finishing techniques include the following: a. Barrel (rotational) finishing b. Vibratory finishing C. Centrifugal (high pressure) finishing 1. Disc 2. Barrel d. Spindle finishing 1 Provided by IHSNot for ResaleNo reproduction or networking permitted withou
15、t license from IHS-,-,-I_- MIL-STD-L73A MF 7799911 00Lbl 7 = 2. REFERENCE DOCUMENTS 2.1 Issues of documents. The following documents of the issue in effect on date of invitation for bids or request for proposal, form a part of this standard to the extent specified herein. ENVIRONMENTAL PROTECTION AG
16、ENCY (EPA) (Application for copies should be addressed to the Superintendent of Documents, US Government Printing Office, Washington, D.C. 20402.) OCCUPATIONAL SAFETY lower than high energy ixternal material handling process. required. iomewhat slower than vibratory tub. Part size limitation. 9igh i
17、nitial investment. No in-process inspection. High initial investment. Limited part geometry. Parts must be fixtured. High labor cost. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-._I _ I UIL-STD-3873A UF W 9999933 0088373 T W M I L-STD- 1873A (AT)
18、 m Open-ended, tilting type 6 Bottlenecked type Horizontal type Submerged type FIGURE 1. Barrels, conventional types. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a I i- MIL-STD-3873A MF = 9999933 0088372 3 = MI L-STD-l873A(AT) Eccent r ic we i gh
19、t system FIGURE 2. Tub vibrators. 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Load r Solut ion Eccentric weight system, flat-bottom style MIL-STD-L73A MF W 7777733 OOB373 3 W M I L- STD- 1873A ( AT ) ,- -_-A_ - . _ - y, - Deflector or gate rai
20、sed, non-flat-bottom style FIGURE 3. Bowl vibrators. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-f I F MIL-STD-Z73A-MF H 4749733 008837LI 5 I /. - I FIGURE 4. Centrifugal disc machine; 15 - Provided by IHSNot for ResaleNo reproduction or networki
21、ng permitted without license from IHS-,-,-_I_ - -II_ MIL-STD-3873A HF M 7777733 0088375 7 M MIL-STD-l873A(AT) rev/s ret Principle of centrifugal barrel process Action within a centrifugal barrel machine FIGURE 5. Centrifuqal barrel machine. 16 r- - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
