GB/T 15114-2023 PDF English
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| GB/T 15114-2023 | English | 440 |
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Aluminum alloy die castings
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| GB/T 15114-2009 | English | 70 |
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Aluminum alloy die castings
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| GB/T 15114-1994 | English | 279 |
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GB/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/GBT15114-2023
GB
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 Contents
Foreword... 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... 26
1 Scope
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 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
Allowances
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.
5.6 Internal Quality
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.
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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