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GB/T 15114-2023: Aluminum alloy die castings Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid GB/T 15114: Historical versions
Similar standardsGB/T 15114-2023: Aluminum alloy die castings---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT15114-2023GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 77.120.10 CCS J 31 Replacing GB/T 15114-2009 Aluminum Alloy Die Castings Issued on. MAY 23, 2023 Implemented on. MAY 23, 2023 Issued by. State Administration for Market Regulation; Standardization Administration of the People’s Republic of China. Table of ContentsForeword... 3 1 Scope... 5 2 Normative References... 5 3 Terms and Definitions... 6 4 Technical Requirements... 7 5 Test Methods... 11 6 Inspection Rules... 12 7 Delivery, Marking, Packaging, Transportation and Storage... 14 Appendix A (normative) Mechanical Properties of Die Cast Aluminum Alloy... 16 Appendix B (normative) Additional Amount (increase or decrease) when Linear Dimensions are Affected by the Parting Surface... 17 Appendix C (normative) Additional Amount (increase or decrease) when Linear Dimensions are Affected by the Movable Part of the Mold... 19 Appendix D (informative) Geometric Tolerances of Aluminum Alloy Die Casting... 21 Appendix E (informative) Surface Roughness of Aluminum Alloy Die Casting... 24 Appendix F (informative) Definition of Diameter of Hole Defects... 25 Appendix G (normative) Internal Defects of Aluminum Alloy Die Casting... 261 ScopeThis document specifies the technical requirements, test methods, inspection rules, as well as delivery, marking, packaging, transportation and storage of aluminum alloy die castings. This document is applicable to the manufacturing and quality inspection of aluminum alloy die castings.2 Normative ReferencesThe contents of the following documents constitute indispensable clauses of this document through the normative references in the text. In terms of references with a specified date, only versions with a specified date are applicable to this document. In terms of references without a specified date, the latest version (including all the modifications) is applicable to this document. GB/T 228.1 Metallic Materials - Tensile Testing - Part 1.Method of Test at Room Temperature GB/T 231.1 Metallic Materials - Brinell Hardness Test - Part 1.Test Method GB/T 1182 Geometrical Product Specifications (GPS) - Geometrical Tolerancing - Tolerances of Form, Orientation, Location and Run-out GB/T 1958 Geometrical Product Specifications (GPS) - Geometrical Tolerance - Verification GB/T 2828.1 Sampling Procedures for Inspection by Attribute - Part 1.Sampling Schemes Indexed by Acceptance Quality Limit (AQL) for Lot-by-lot Inspection GB/T 2829 Sampling Procedures and Tables for Periodic Inspection by Attributes (apply to inspection of process stability) GB/T 3177 Geometrical Product Specifications (GPS) - Inspection of Plain Workpiece Sizes GB/T 5611 Foundry Terminology GB/T 6060.1 Surface Roughness Comparison Specimen - Part 1.Casting Surface GB/T 6060.3 Surface Roughness Comparison Specimen - Part 3.Spark-eroded, Shot-blasted, Grit-blasted, Lapped, Filed and Polished Surface GB/T 6414 Castings - Dimensional Tolerances and Geometrical Tolerances and Machining Allowances3 Terms and DefinitionsWhat is defined in GB/T 5611, and the following terms and definitions are applicable to this document. 3.1 aluminum alloy die casting Aluminum alloy die casting refers to an aluminum alloy casting produced through the mode of die casting using high-pressure die-casting equipment. 3.2 structural part Structural part refers to the load-bearing part or force-bearing part of aluminum alloy die casting (3.1) that is closely related to safety during use. 3.3 functional part Functional part refers to a component with functional characteristics.4 Technical Requirements4.1 Chemical Composition The chemical composition of aluminum alloy die casting shall comply with the stipulations of Table 1. 4.2 Mechanical Properties 4.2.1 The mechanical properties of aluminum alloy die castings are based on the mechanical properties determined on Type A tensile specimens specified in GB/T 13822 as the reference basis for inspection. 4.2.2 The typical mechanical properties determined using Type A tensile specimens specified in GB/T 13822 shall comply with the stipulations of Appendix A. 4.2.3 When it is necessary to use aluminum alloy die casting body for sampling inspection, the requirements for the mechanical properties shall be determined by the demand-side and the supply-side through negotiation. 4.3 Dimensions 4.3.1 The geometrical shapes and dimensions of aluminum alloy die casting shall comply with the stipulations of the casting drawings. 4.3.2 The dimensional tolerances of aluminum alloy die casting shall comply with the stipulations of GB/T 6414.An additional amount shall be added to the dimensional tolerances affected by the parting surface and the movable part of the mold, and shall comply with the stipulations of Appendix B and Appendix C. When there are special stipulations and requirements, they shall be indicated on the drawings. 4.3.5 The machining allowances of aluminum alloy die casting shall comply with the stipulations of GB/T 6414.When there are special stipulations and requirements, the machining allowances shall be indicated on the drawings. 4.4 Mass The selection of mass tolerance grade of aluminum alloy die casting shall comply with the stipulations of Grade MT4 ~ MT7 of GB/T 11351.If there are special stipulations and requirements, they shall be determined by the demand-side and the supply-side through negotiation. 4.5 Surface Quality 4.5.1 The surface roughness of aluminum alloy die casting shall comply with the requirements of the drawings or the demand-side. If there are no requirements, please refer to Appendix E. 4.5.2 Aluminum alloy die casting shall not have cracks and any penetrating defects. 4.5.3 Aluminum alloy die casting is allowed to have defects like scratches, dents, misrun and reticular burrs, etc. The degree and number of defects shall be determined by the demand-side and the supply-side through negotiation. 4.6.2 When there are requirements for the air tightness, hydraulic sealing and internal defects of aluminum alloy die casting, and items not listed in this document, the acceptance standards agreed upon by the demand-side and the supply-side shall be followed. 4.6.3 Aluminum alloy die casting allows infiltration, repair and deformation correction. If there are special requirements, they shall be determined by the demand-side and the supply-side through negotiation. 4.7 Thermal Treatment Process Aluminum alloy die casting can be subject to thermal treatment in accordance with the performance requirements, which shall be determined by the demand-side and the supply-side through negotiation.5 Test Methods5.1 Chemical Composition The inspection methods for the chemical composition shall comply with the stipulations of GB/T 7999, GB/T 20975.3, GB/T 20975.4, GB/T 20975.5, GB/T 20975.7, GB/T 20975.8, GB/T 20975.10, GB/T 20975.11, GB/T 20975.12, GB/T 20975.14, GB/T 20975.16 and GB/T 20975.17.Under the condition that the accuracy of analysis is guaranteed, other methods are allowed to be used. 5.2 Mechanical Properties 5.2.1 The tensile test of aluminum alloy die casting shall be carried out in accordance with the stipulations of GB/T 228.1. 5.2.2 The hardness test of aluminum alloy die casting shall be carried out in accordance with the stipulations of GB/T 231.1. 5.2.3 When aluminum alloy die casting requires an inspection of its own body, the sampling location, specimen size and test method shall be determined by the demand-side and the supply- side through negotiation. 5.3 Dimensions 5.3.1 The inspection of geometric dimensions of aluminum alloy die casting shall comply with the stipulations of GB/T 3177. 5.3.2 The inspection of geometric tolerances of aluminum alloy die casting shall comply with the stipulations of GB/T 1958. 5.3.3 Use general or special-purpose measuring instruments that satisfy the accuracy for inspection. 5.4 Mass The inspection of mass of aluminum alloy die casting shall comply with the stipulations of GB/T 11351. 5.5 Surface Quality 5.5.1 The surface quality of aluminum alloy die casting shall adopt visual inspection or other methods. 5.5.2 The surface roughness of aluminum alloy die casting shall be tested using a comparison sample block. The comparison sample block shall comply with the stipulations of GB/T 6060.1 and GB/T 6060.3. 5.6 Internal Quality6 Inspection Rules6.1 Inspection Items The inspection of aluminum alloy die casting is divided into type inspection and exit-factory inspection. The inspection items are shown in Table 4. 6.2 Group Batch Aluminum alloy die castings of the same designation, the same die casting machine, the same set of molds, and the same shift of continuous production are considered to be one batch. Group batch under special circumstances shall be determined by the demand-side and the supply-side through negotiation. 6.3 Sampling The stipulations on the sampling of aluminum alloy die casting are shown in Table 5. 6.4 Determination of Inspection Results 6.4.1 When it fails to pass the first inspection of chemical composition, it is allowed to take double the number of specimens for a repeated test. If the results of the repeated test are all qualified, the batch shall be determined as qualified; if there are still specimens that are disqualified in the repeated test results, the batch shall be determined as disqualified. 6.4.2 When die casting specimens are used for inspection, there shall be 3 specimens in each group. If 2 of the 3 specimens tested are disqualified in the mechanical properties, then, the batch shall be determined as disqualified. It is allowed to use a double number of specimens for a second inspection. If 2 specimens are disqualified in the second inspection, but the overall average value is qualified, the batch can be determined as qualified. If there are more than 2 disqualified specimens, then, the batch shall be determined as disqualified. 6.4.3 If any product is disqualified in the random inspection of dimensions, the batch shall be determined as disqualified. 6.4.4 If any product is disqualified in the random inspection of mass, the batch shall be determined as disqualified. 6.4.5 If any product is disqualified in the random inspection of surface quality, the batch shall be determined as disqualified. 6.4.6 If any product is disqualified in the random inspection of internal quality, the batch shall be determined as disqualified.7 Delivery, Marking, Packaging, Transportation and Storage7.1 Exit-factory Inspection Report When it is required in the contract or agreement, the supply-side shall submit an inspection report to the demand-side. The inspection report shall at least provide the following contents. 7.2 Certificate When aluminum alloy die casting is delivered, it shall be accompanied by an inspection certificate. The specific content and format of the certificate shall be determined by the demand- side and the supply-side through negotiation. 7.3 Product Marking 7.3.1 Aluminum alloy die casting shall have the following marks cast or engraved on the non- machined surface. 7.3.2 When the demand-side has special requirements, they shall be determined by the demand- side and the supply-side through negotiation. 7.4 Packaging Marks The outer packaging of aluminum alloy die casting shall have the following marks. 7.5 Packaging The packaging of aluminum alloy die casting shall be firm and reliable, and shall not be damaged or broken during transportation and handling. The packaging of export products shall comply with the packaging requirements for export commodities. 7.6 Transportation During transportation, aluminum alloy die casting shall comply with the stacking requirements and are strictly prohibited from being exposed to rain, moisture, throwing and violet collisions. 7.7 Storage Aluminum alloy die casting shall be stored in a dry, well-ventilated warehouse without harmful gases, and cannot be stored together with acids, alkalis or other corrosive chemicals. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. 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