GB/T 42618-2023 English PDF

US$459.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 42618-2023: Additive manufacturing - Design - Laser-based powder bed fusion of polymers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 42618-2023	459	Add to Cart	4 days	Additive manufacturing - Design - Laser-based powder bed fusion of polymers	Valid

Similar standards

GB/T 42869   GB/T 41655   GB/T 41350   GB/T 19799.3   GB/T 42617   

Basic data

Standard ID: GB/T 42618-2023 (GB/T42618-2023)
Description (Translated English): Additive manufacturing - Design - Laser-based powder bed fusion of polymers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J04
Classification of International Standard: 25.030
Word Count Estimation: 22,267
Date of Issue: 2023-05-23
Date of Implementation: 2023-12-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 42618-2023: Additive manufacturing - Design - Laser-based powder bed fusion of polymers

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 25:030 CCSJ04 National Standards of People's Republic of China Additive ManufacturingDesigning Polymer Materials Laser Powder Bed Fusion Released on 2023-05-23 2023-12-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee

table of contents

Preface I Introduction III 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 Symbols and abbreviations 2 4:1 Symbol 2 4:2 Abbreviations 3 5 Process characteristics 3 5:1 Part size 3 5:2 Advantages of PBF process 3 5:3 PBF process limitations 4 5:4 Economy and efficiency 4 5:5 Functional Constraints 4 5:6 Size, shape and position accuracy 6 5:7 Data quality, resolution, representation 6 6 Design Guidelines 6 6:1 Material and structural properties 6 6:2 Anisotropy of materials 7 6:3 Forming direction, position and arrangement 8 6:4 Surface roughness 8 6:5 Post-processing 8 6:6 Design Concerns 9 Appendix A (Informative) Application Case 15 Reference 16

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document is modified to adopt ISO /ASTM52911-2:2019 "Design for Additive Manufacturing Part 2: Laser Powder Bed of Polymer Materials" Melt: Compared with ISO /ASTM52911-2:2019, this document has made the following structural adjustments: ---Chapter 5 corresponds to Chapter 5 in ISO /ASTM52911-2:2019, of which 5:1~5:7 corresponds to ISO /ASTM52911-2: 5:2~5:8 in:2019, deleted 5:1 in ISO /ASTM52911-2:2019; ---Chapter 6 and Appendix A correspond to Chapter 6 in ISO /ASTM52911-2:2019, of which 6:1~6:6 correspond to ISO /ASTM 6:2~6:7 in 52911-2:2019, Appendix A corresponds to 6:8 in ISO /ASTM52911-2:2019, appendix is added A, Deleted 6:1 in ISO /ASTM52911-2:2019: The technical differences between this document and ISO /ASTM52911-2:2019 and their reasons are as follows: --- Replaced ISO /ASTM52900 (see Chapter 3) with the normatively quoted GB/T 35351 to continue to use my country's additive manufacturing Domain terms are defined in a customary way for ease of use; --- Added the term "secondary sintering" (see 3:5) to unify the industry terms; --- Deleted the introductory content of Chapter 5:1, 6:1 and Chapter 8 in ISO /ASTM52911-2:2019, and the background introduction does not need to be repeated; --- An example of a typical complex geometric structure (see 5:2) has been added to adapt to the development of additive manufacturing technology; --- Deleted the non-typical free geometry, topology optimization structure and filling structure in 5:3 of ISO /ASTM52911-1:2019 Examples or meanings, free geometry, topology optimization structures and infill structures are already examples and very clear, no need to give Give detailed examples; ---Changed the impact of product height on the positioning method and changed it to "should" (see 5:4), because although the impact of height is the largest, it is not necessary required; ---Introduction to the process of converting DICOM files to 3D geometric models (see 5:7) has been added to make the process smoother; --- Increased the relevant content of preheating temperature, including semi-crystalline polymer and amorphous polymer PBF (see 6:1), to improve this document operability; ---Changed the main performance and abbreviation code of LB-PBF/P raw materials (see Table 2), expanded the performance description, and improved the operability of this document active; --- Delete the last sentence of 6:3 in ISO /ASTM52911-2:2019 to adapt to the current status of additive manufacturing technology; --- Added GB/T 41507 (see 6:3:1) for normative references, because the text is a required clause; --- Deleted the recommended content of font size and type in 6:7:13 inscription printing in ISO /ASTM52911-2:2019 to adapt to The development of new technologies for additive manufacturing, such as micro-selection printing: The following editorial changes have been made to this document: --- In order to coordinate with existing standards, change the name of the standard to "Design of Additive Manufacturing and Laser Powder Bed Fusion of Polymer Materials"; ---Delete the informative references to 3:4, 5:6:2, 5:6:4, 6:3, 6:7:6, 6:7:10 in ISO /ASTM52911-2:2019 Germany Standard VDI3405, to avoid copyright issues; ---Added the abbreviations "3D" and "2:5D", changed the abbreviations "LB-PBF/P" and Another name for "STL"; Deleted the electron beam metal PBF in 4:2 of ISO /ASTM52911-2:2019 which is not relevant to this document and the related abbreviations "EB-PBF/M" and "LB-PBF/M" for laser metal PBF (see 4:2); --- Increase the relevant content of the design guide, replace ISO /ASTM52910 with the informative reference GB/T 37698 (see 5:6); --- Added the relevant content of the file format, and replaced ISO /ASTM52915 with the informative reference GB/T 35352 (see 5:7); ---Delete descriptive sentences such as the pressurization principle of the inner runner in 6:7:6 of ISO /ASTM52911-2:2019; ---Deleted the application case of 6:8 in ISO /ASTM52911-2:2019, and added the application case of my country (see Appendix A): Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed by China Machinery Industry Federation: This document is under the jurisdiction of the National Additive Manufacturing Standardization Technical Committee (SAC/TC562): This document was drafted by: Anhui Spring Valley 3D Printing Intelligent Equipment Industrial Technology Research Institute Co:, Ltd:, Shandong Chuangrui Laser Technology Co:, Ltd: Company, Huazhong University of Science and Technology, Beijing Xinghang Electromechanical Equipment Co:, Ltd:, China Academy of Mechanical Sciences Group Co:, Ltd:, China Ocean University Science, China Machine Research Institute of Standard Technology (Beijing) Co:, Ltd:, Beijing Institute of Technology, China Machine Productivity Promotion Center Co:, Ltd:, Shanghai Materials Research Institute Research Institute, Beijing Remote Sensing Equipment Research Institute, Beijing Huitianwei Technology Co:, Ltd:, China Commercial Aircraft Co:, Ltd: Beijing Civil Aircraft Technology Research Center, China Aviation Development Shanghai Commercial Aviation Engine Manufacturing Co:, Ltd: The main drafters of this document: Wu Poor, Lu Zhongli, Yan Chunze, Li Zhiyong, Zhu Zheng, Liu Yonghui, Xue Lian, Zhao Zeang, Bian Chen, Li Haibin, Hu Hao, Wang Geng, Shang Peng, Wang Yu, Hou Huipeng, Zhang Xiaolu:

Introduction

Polymer material laser powder bed fusion process (LB-PBF/P) is a kind of non-metallic additive manufacturing process, which has been widely used in aviation Aerospace, automotive, medical and other fields: LB-PBF/P has a high material utilization rate and does not need supports, which can shorten the product cycle and reduce production costs: Now the structurally complex components are integrally formed: Due to the diversity of forming materials, it is determined that the LB-PBF/P process can be formed with different characteristics and full Various types of parts for different purposes: For example, shaped plastic mobile phone casings can be used for structural verification and functional testing, and can also be directly used as parts Use: to make investment molds or sand molds (cores) for complex casting, to assist the rapid manufacture of complex castings; to manufacture polymer parts with complex structures, as a function It can be used in parts, and the precision can reach 100mm±0:2mm, which is equivalent to the precision casting process: LB-PBF/P uses the thermal effect of high-energy laser beams to soften or melt powder materials, and then bond them layer by layer to obtain three-dimensional solid parts: The fused powder, by mixing with the original powder, can be recycled in the subsequent forming process: Commonly used materials include PA12, PA 11, etc: In addition, the material can be filled or mixed with other materials (such as glass-filled PA12 and flame-retardant PA11), thereby improving strength, Thermal properties, electrical properties and flame retardant properties: LB-PBF/P process is different from the traditional manufacturing process (such as subtractive material, equal material manufacturing), the problems considered in the design stage are different: LB- PBF/P has no restrictions similar to the traditional process, which provides designers and manufacturers with a high degree of freedom, but it also needs to understand the manufacturability of the process: creativity and limitations: This document describes the process characteristics and design criteria for laser powder bed fusion of polymer materials Fusion design provides guidance and methods to help designers and producers determine the design elements and give full play to the advantages of the process, and grasp the additive manufacturing process: The key to product design, improve the quality and performance of additive manufacturing products, and promote the development of additive manufacturing industry in a more orderly, reasonable and economical direction: It has good economic and social benefits: Additive ManufacturingDesigning Polymer Materials Laser Powder Bed Fusion

1 Scope

This document specifies the process characteristics and design criteria for laser powder bed fusion of polymeric materials: This document is applicable to the design of laser powder bed fusion process for polymer materials:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 35351 Additive Manufacturing Terminology GB/T 41507 Additive manufacturing term coordinate system and test method (GB/T 41507-2022, ISO /ASTM52921: 2013, MOD)

3 Terms and Definitions

The following terms and definitions defined in GB/T 35351 apply to this document: 3:1 lower surface area downskinarea The (sub)region in which the normal vector :n on the z-axis is projected to be negative: Note: See Figure 1: 3:2 lower surface angle downskinangle angle between the plane of the forming platform and the lower surface area (3:1): Note: See Figure 1: 3:3 upper surface area upskinarea The (sub)region where the normal vector :n on the z-axis is projected to be positive: Note: See Figure 1: 3:4 upper surface angle upskinangle angle between the plane of the forming platform and the upper surface area (3:3): ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 42618-2023_English be delivered?

Answer: Upon your order, we will start to translate GB/T 42618-2023_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 42618-2023_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 42618-2023_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.