GB/T 41508-2022 in English
VALIDAdditive manufacturing—General principles—Requirements for purchased AM parts
- Issued on:2022-07-11
- Implemented on:2023-02-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$214.00
《GB/T 41508-2022增材制造 通则 增材制造零件采购要求》由TC562（全国增材制造标准化技术委员会）归口，主管部门为中国机械工业联合会。
Introduction
Standard Framework and Technological Evolution
| Project | International Standard ISO/ASTM52901:2017 | Improvement of GB/T41508-2022 |
|---|---|---|
| Definition of Terms | Based on ISO/ASTM52900 | Adopting the localized terminology system of GB/T35351 |
| Test Method | Citing ASTM Standard | Using GB/T35022 and adding 12 new test indicators |
| Process Specification | General guidelines | New standardization requirements for forming directions |
Key elements of the procurement list
Part definition specifications
According to Clause 4.3 of the standard, Additive manufacturing equipment must meet the following requirements:
- Geometric dimension tolerance ≤ IT13 grade (GB/T1804)
- Surface roughness Ra parameter control range 0.8-6.3μm
- A 1.2mm machining allowance must be reserved in the support structure setting area
Key points for quality control implementation
| Acceptance stage | Testing methods | Key indicators |
|---|---|---|
| Identification parts | Three-coordinate measurement | Repeat positioning accuracy±0.05mm |
| First article inspection | Industrial CT scanning | Internal defects≤φ0.2mm |
| Mass production batch | Sampling metallographic analysis | Porosity≤0.5% |
Post-processing process requirements
Standard 4.4.5 clearly stipulates:
- The heat treatment process must keep the part deformation <0.1%
- Sandblasting should use 60-100 meshAlumina abrasive
- Precision mating surfaces must ensure Ra0.8 surface roughness
Implementation recommendations
Supplier management strategy
- Establish a Qualified Supplier List (QLM) audit matrix
- R&D outsourcing requires the signing of an AMS special technical agreement
- Introduce the Digital Product Passport (DPP) management system
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