GB/T 15114-2023Aluminum alloy die castings (English PDF)
铝合金压铸件
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Issued by
State Administration for Market Regulation; Standardization Administration of China
Level / Type
National · Recommended
Issue date
May 23, 2023
Implementation date
May 23, 2023
Scope
GB/T 15114-2023 is the English-translated version of 铝合金压铸件.
GB/T 15114-2023 is the Chinese national standard on aluminum alloy die castings, in the field of metallurgy. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 23 May 2023 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 23 May 2023. Classification: ICS 77.120.10, CCS J31. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.
Document preview — GB/T 15114-2023
National Standard of the People's Republic of China
- ICS
- 77.120.10
- Classification
- J31
Issued by: State Administration for Market Regulation; Standardization Administration of China
Contents
- 1 Scope
- 2 Normative References
- 3 Terms and Definitions
- 4 Technical Requirements
- 4.2 Mechanical Properties
- 4.3 Dimensions
- 4.5 Surface Quality
- 5 Test Methods
- 5.2 Mechanical Properties
- 5.3 Dimensions
- 5.5 Surface Quality
- 5.6 Internal Quality
- 6 Inspection Rules
- 6.4 Determination of Inspection Results
- 7 Delivery, Marking, Packaging, Transportation and Storage
- 7.3 Product Marking
1 Scope
GB/T 15114-2023 is the Chinese national standard on aluminum alloy die castings, in the field of metallurgy. The /T suffix marks it as a recommended standard: it is not compulsory by itself, but it becomes binding as soon as a contract, a tender or a customer specification calls it up - which in practice is how most foreign buyers meet it. It was issued on 23 May 2023 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 23 May 2023. Classification: ICS 77.120.10, CCS J31. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.
This 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 References
The 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
3 Terms and Definitions
What 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 Requirements
4.1 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 Methods
5.1 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.
6 Inspection Rules
6.1 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 Storage
7.1 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.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 228.1Metallic Materials — Tensile Testing — Part 1: Method of Test at Room Temperature
- GB/T 231.1Metallic materials - Brinell hardness test - Part 1: Test method
- GB/T 1958Geometrical Product Specifications(GPS)—Geometrical tolerance—Verification
- GB/T 2828.1Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection
- GB/T 2829Sampling procedures and tables for periodic inspection by attributes
- GB/T 3177Geometrical product specifications (GPS) - Inspection of plain workpiece sizes
GB/T 1182
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Editions of GB/T 15114
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 15114-2023 | Aluminum alloy die castings | current edition | Current |
| GB/T 15114-2009 | Aluminum alloy die castings | previous edition | Superseded |
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