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GB/T 41477-2022: Testing methods for mechanical properties of metal parts repaired by laser cladding
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Testing methods for mechanical properties of metal parts repaired by laser cladding
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GB/T 41477-2022
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Basic data | Standard ID | GB/T 41477-2022 (GB/T41477-2022) | | Description (Translated English) | Testing methods for mechanical properties of metal parts repaired by laser cladding | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H22 | | Word Count Estimation | 31,310 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 41477-2022: Testing methods for mechanical properties of metal parts repaired by laser cladding
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Testing methods for mechanical properties of metal parts repaired by laser cladding
ICS 77.040.10
CCSH22
National Standards of People's Republic of China
Laser Cladding Repair of Metal Parts
Mechanical properties test method
Published on 2022-04-15
2022-08-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
directory
Foreword V
1 Scope 1
2 Normative references 1
3 Terms and Definitions 1
4 symbol 4
5 Basic Requirements 6
5.1 Test procedure 6
5.2 Specimen substrate 6
5.3 Cladding material 6
5.4 Process requirements 6
6 Sample preparation 6
6.1 Sample preparation method 6
6.2 Prototype production 6
7 Test method 7
7.1 Tensile test 7
7.2 Impact test 8
7.3 Fatigue test 8
8 Test report9
8.1 General 9
8.2 Tensile test report 9
8.3 Impact test report 9
8.4 Fatigue test report 9
Appendix A (normative) Tensile Specimen Preparation 10
A.1 General Requirements 10
A.2 Sampling direction of the sample 10
A.3 Rectangular cross-section tensile test specimen 10
A.4 Circular cross-section tensile test specimen 13
Appendix B (normative) Impact test specimen preparation 16
B.1 General requirements 16
B.2 Sampling direction of the sample 17
B.3 Preparation of Impact Specimen for Surface Repair 17
Appendix C (normative) Fatigue Specimen Preparation 20
C.1 General Requirements 20
C.2 Sampling direction of the sample 20
C.3 Fatigue Specimen with Rectangular Cross Section 20
C.4 Circular cross-section fatigue specimens 23
Figure 1 Schematic diagram of the proportion of repaired thickness 2
Figure 2 Schematic diagram of the proportion of repaired surface area 2
Fig.3 Schematic diagram of repair thickness, repair outer surface radius, fill bevel and fill fillet of the sample 3
Fig. 4 Schematic diagram of side length, filling bevel and filling fillet of the outer surface of the sample repaired 4
Figure 5 Schematic diagram of pit repair 6
Figure 6 Schematic diagram of groove repair 7
Figure 7 Schematic diagram of surface repair 7
Figure A.1 Schematic diagram of sample sampling direction 10
Figure A.2 Tensile test specimen with rectangular cross section 11
Figure A.3 Tensile specimens repaired with flat pits 12
Figure A.4 Tensile Specimen Repaired with Flat Groove 12
Figure A.5 Flat Surface Repair Form 1 --- Tensile Specimen 13
Figure A.6 Flat Surface Repair Form 2 --- Tensile Specimen 13
Figure A.7 Flat Surface Repair Form 3 --- Tensile Specimen 13
Figure A.8 Tensile test specimen with circular cross section 14
Figure A.9 Round bar surface repair form 1 --- Tensile specimen 14
Figure A.10 Round bar surface repair form 2 --- Tensile specimen 15
Figure B.1 V-type standard sample 16
Figure B.2 U-shaped standard sample 16
Figure B.3 Schematic diagram of sampling direction of impact specimen 17
Figure B.4 Surface Repair Form 1 --- Impact Specimen 18
Figure B.5 Surface Repair Form 2 --- Impact Specimen (away from the impact notch) 18
Figure B.6 Surface Repair Form 2 --- Impact Specimen (near the impact notch) 18
Figure B.7 Surface Repair Form 3 --- Impact Specimen 19
Figure C.1 Fatigue Specimen with Rectangular Cross Section 21
Figure C.2 Fatigue specimens repaired with flat pits 21
Figure C.3 Fatigue Specimen Repaired by Flat Groove 22
Figure C.4 Flat Surface Repair Form 1 --- Fatigue Specimen 23
Figure C.5 Flat Surface Repair Form 2 --- Fatigue Specimen 23
Figure C.6 Flat Surface Repair Form 3 --- Fatigue Specimen 23
Figure C.7 Circular cross-section fatigue specimen 24
Figure C.8 Round Bar Surface Repair Form 1 --- Fatigue Specimen 24
Figure C.9 Round Bar Surface Repair Form 2---Fatigue Specimen 25
Table 1 Symbols and Descriptions 5
Table A.1 Rectangular Cross Section Tensile Ratio Specimen Dimensions 11
Table A.2 Recommended Repair Thickness for Pit Repair and Groove Repair Tensile Specimens 11
Table A.3 Tensile test specimens for groove repair are recommended to repair the outer surface side length 12
Table A.4 Circular Cross Section Tensile Ratio Specimen Dimensions 14
Table B.1 Surface Repair Form 1 --- Impact Specimen Repair Thickness 18
Table B.2 Surface Repair Form 2 --- Impact Specimen Repair Thickness 19
Table C.1 Rectangular cross-section fatigue specimen size 20
Table C.2 Recommended Repair Thickness for Pit Repair and Groove Repair Fatigue Specimens 22
Table C.3 Groove repair fatigue specimens recommended repair outer surface side length 22
Table C.4 Dimensions of circular cross-section fatigue specimens 24
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents"
drafted.
Please note that some content of this document may be patented. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China Machinery Industry Federation.
This document is under the jurisdiction of the National Standardization Committee of Laser Repair Technology (SAC/TC482).
This document is drafted by. Shenyang University of Aeronautics and Astronautics, Shenyang Continental Laser Technology Co., Ltd., Shenyang Foundry Research Institute Co., Ltd., CRRC
Qingdao Sifang Locomotive and Rolling Stock Co., Ltd., Shenyang Aircraft Industry (Group) Co., Ltd., China Civil Aviation Shenyang Aircraft Airworthiness Certification
Heart, Shanghai Continental Laser Technology Co., Ltd., Shanghai Jiaotong University, Shanghai Institute of Electrical Engineering, Shenyang University of Technology, Institute of Metal Research, Chinese Academy of Sciences,
Shenyang University, Offshore Oil Fudao Co., Ltd., National Center for Quality Supervision and Inspection of Remanufactured Machinery Products (Shandong), Northeastern University, Shenyang Shengyuan
Testing Technology Co., Ltd., Baoshan Iron and Steel Co., Ltd., State-owned Sichuan West Machinery Factory, Xiangyang Hangtai Power Machinery Factory, Xi'an Shaangu Power Co., Ltd.
Co., Ltd., Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang Jianzhu University, Chongqing Pump Factory Co., Ltd., Xi'an Thermal Engineering Research Institute have
Ltd.
The main drafters of this document. Hui Li, Zhou Song, Chen Jiang, Xu Liang, Yang Guang, Xie Huasheng, Zhang Zhenxian, Wang Yuguang, Wang Wei, Wang Lei, Pan Xin,
Li Xiaodan, Zhao Jun, Shi Kun, Sun Jinbo, Zhang Jingbo, Feng Kai, Li Lei, Zhang Song, Yao Ge, He Chunlin, Xu Min, Lu Zhengjie, Zhao Bingfeng, Fan Jiancheng,
Wu Chenliang, Xiao Jiulin, Su Lei, Sun Hongmei, Gui Min, Sun Biao, Wang Fan, Zhao Jibin, Zhang Xiaochen, Zhao Yuhui, Xie Wei.
Laser Cladding Repair of Metal Parts
Mechanical properties test method
1 Scope
This document specifies the basic requirements, sample preparation, test methods and test reports for the mechanical properties test of metal parts repaired by laser cladding.
This document applies to the mechanical properties (tensile, impact and fatigue) tests of metal parts repaired by laser cladding (hereinafter referred to as "repair").
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document.
GB/T 228.1-2010 Tensile test of metallic materials - Part 1.Test method at room temperature
GB/T 228.2 Tensile Test of Metallic Materials Part 2.High Temperature Test Method
GB/T 228.3 Tensile Test of Metallic Materials Part 3.Low Temperature Test Method
GB/T 229-2020 Charpy Pendulum Impact Test Method for Metal Materials
GB/T 3075-2021 Axial force control method for fatigue test of metallic materials
GB/T 29795 Laser Repair Technical Terms and Definitions
GB/T 29796 General technical specification for laser repair
3 Terms and Definitions
GB/T 228.1, GB/T 228.2, GB/T 228.3, GB/T 229, GB/T 3075, GB/T 29795, GB/T 29796
and the following terms and definitions apply to this document.
3.1
Tr
On the repaired section of the repaired component, the thickness of the repaired part accounts for the percentage of the original thickness.
Note 1.Tr=Th/Dh×100%, see Figure 1.
Note 2.hereinafter referred to as "thickness ratio".
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