Foreword
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This document is developed in accordance with the rules given in GB/T 1.1-2020 Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents.
This document replaces GB/T 15114-2009 Aluminum alloy die castings. In addition to structural adjustments and editorial changes, the following main technical changes have been made with respect GB/T 15114-2009:
a) The "Scope" has been modified (see Clause 1 hereof; Clause 1 of Edition 2009);
b) The terms and definitions of "aluminum alloy die casting", "structural part" and "functional part" have been added (see Clause 3 hereof);
c) The technical requirements have been modified (see Clause 4 hereof; Clause 3 of Edition 2009);
d) The quality assurance has been deleted (see Clause 4 of Edition 2009);
e) The test method has been modified (see Clause 5 hereof; Clause 5 of Edition 2009);
f) Inspection rules have been modified (see Clause 6 hereof; Clause 5 of Edition 2009);
g) The delivery, marking, packaging, transportation and storage have been modified (see Clause 7 hereof; Clause 6 of Edition 2009);
h) The mechanical property requirements for die casting aluminum alloys have been modified (see Annex A hereof, Annex A of Edition 2009);
i) The provisions for additional amounts when line type dimensions are affected by parting surfaces have been modified (see Annex B hereof, Annex B of Edition 2009);
j) The provisions for additional amounts when line type dimensions are affected by moving parts of the mold have been modified (see Annex C hereof, Annex C of Edition 2009);
k) The provisions for internal defects of aluminum alloy die castings have been added (see Annex G hereof).
Attention is drawn to the possibility that some of the parts of this document may be the subject of patent rights. The issuing body of this document shall not be held responsible for identifying any or all such patent rights.
This document was proposed by and is under the jurisdiction of the National Technical Committee on Foundry of Standardization Administration of China (SAC/TC 54).
This document was issued in 1994 for the first time, its first revision was issued in 2009, and this is the second revision.
Aluminum alloy die castings
1 Scope
This document specifies the technical requirements, test method and 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 following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
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 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 attributes - 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 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 - System of dimensional tolerances and machining allowances
GB/T 7999 Optical emission spectrometric analysis method of aluminum and aluminum alloys
GB/T 11351 Mass tolerances of casting
GB/T 13822 Test specimens for non ferrous diecasting alloys
GB/T 20975.3 Methods for chemical analysis of aluminium and aluminium alloys - Part 3: Determination of copper content
GB/T 20975.4 Methods for chemical analysis of aluminium and aluminium alloys - Part 4: Determination of ferrum content
GB/T 20975.5 Methods for chemical analysis of aluminium and aluminium alloys - Part 5: Determination of silicon content
GB/T 20975.7 Methods for chemical analysis of aluminium and aluminium alloys - Part 7: Determination of manganese content
GB/T 20975.8 Methods for chemical analysis of aluminium and aluminium alloys - Part 8: Determination of zinc content
GB/T 20975.10 Methods for chemical analysis of aluminium and aluminium alloys - Part 10: Determination of tin content
GB/T 20975.11 Methods for chemical analysis of aluminium and aluminium alloys - Part 11: Determination of magnesium content
GB/T 20975.12 Methods for chemical analysis of aluminium and aluminium alloys - Part 12: Determination of titanium content
GB/T 20975.14 Methods for chemical analysis of aluminium and aluminium alloys - Part 14: Determination of nickel content
GB/T 20975.16 Methods for chemical analysis of aluminium and aluminium alloys - Part 16: Determination of magnesium content
GB/T 20975.17 Methods for chemical analysis of aluminium and aluminium alloys - Part 17: Determination of strontium content
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 5611 and the following apply.
3.1
aluminum alloy die casting
aluminum alloy castings produced by die casting using high pressure die casting equipment
3.2
structural part
load-bearing parts or stress-bearing parts, aluminum alloy die castings closely related to safety in use (3.1)
Note: General structural parts play the role of bearing load, connecting parts and resisting impact, and have special requirements for tensile strength, yield strength and elongation of materials.
3.3
functional part
components with functional characteristics
Note: Compared with structural parts, the difference between aluminum alloy die castings with specific use functions is that their toughness requirements are relatively low.
4 Technical requirements
4.1 Chemical composition
The chemical compositions of aluminum alloy die castings shall meet those specified in Table 1.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test method
6 Inspection rules
7 Delivery, marking, packaging, transportation and storage
Annex A (Normative) Mechanical properties of die casting aluminum alloy
Annex B (Normative) Additional amount (increase or decrease) when line type dimension is affected by parting surface
Annex C (Normative) Additional amount (increase or decrease) when the line type dimension is affected by the moving part of the mold
Annex D (Informative) Geometric tolerances for aluminum alloy die castings
Annex E (Informative) Surface roughness of aluminum alloy die castings
Annex F (Informative) Definition of dimension of hole defect diameter
Annex G (Informative) Internal defects of aluminum alloy die castings
