GB/T 43895-2024 in English
VALIDAdditive manufacturing—Material —Mould steel powders
- Issued on:2024-04-25
- Implemented on:2024-11-01
- File Format:PDF
- Delivery:Within 1 day
$194.00
《GB/T 43895-2024增材制造 材料 模具钢粉》由TC183（全国钢标准化技术委员会）归口，TC183SC16（全国钢标准化技术委员会特殊钢分会）执行，主管部门为中国钢铁工业协会。
Introduction
1. Background and significance of standard formulation
With the rapid development of additive manufacturing technology, mold steel powder is a key material, and its quality and performance are directly related to the precision and service life of the final product. The formulation of GB/T 43895-2024 "Additive Manufacturing Material Mold Steel Powder" fills the domestic standard gap in this field, provides a unified technical specification for the production and application of mold steel powder, and promotes the healthy development of the additive manufacturing industry.
2. Comparative analysis of standard frameworks
| Standard Dimensions | GB/T 43895-2024 Requirements | Comparison with International Advanced Levels |
|---|---|---|
| Chemical Composition Control | Table 1 clarifies the content range of the main elements of mold steel powder to ensure the uniformity and consistency of the material. | Compared with ASTM F429-17, this standard is more stringent in controlling key elements such as molybdenum and chromium. |
| Particle size distribution | Table 2 specifies the particle size specifications of three types of powders and their applicable processes to ensure that the processing performance matches the application requirements. | Compared with ISO 13694-1, this standard adds quantitative indicators for particle size distribution. |
| Physical properties | Tables 3 to 5 specify the requirements for bulk density, tap density and fluidity, respectively, to ensure the machinability of powders in the additive manufacturing process. | Compared with NIST SP 1536-20, this standard is more targeted in terms of fluidity indicators. |
3. Implementation suggestions
3.1 Suggestions for chemical composition control
Case analysis: The molybdenum content of the mold steel powder purchased by a certain company was found to exceed the standard during chemical composition testing. By optimizing the raw material ratio and smelting process, it finally met the requirements of Table 1.
3.2 Improvement of particle size control technology
Improvement suggestions: It is recommended to adopt a combined process of air flow milling and screening equipment to improve the uniformity of particle size distribution. At the same time, regularly calibrate the particle size detection instrument to ensure data accuracy.
3.3 Physical performance optimization
Optimization method: For powders with poor fluidity, you can try to reduce the powder humidity or improve the design of the feeding device. It is recommended to introduce an online monitoring system in the production process to monitor physical performance indicators in real time.
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