Introduction to Additive Manufacturing: Part Two

요약:

Additive manufacturing is a relatively recent manufacturing method which has become a key area of interest in multiple industrial sectors.
As the application and growth of AM occurs, several systems to classify the AM processes have developed, including one proposed by the American Society for Testing and Materials (ASTM) F42 Committee.

Additive Manufacturing (AM) comprises a family of different technologies that build up parts by adding materials layer by layer at a time based on a digital 3D solid model. After thirty years of development, AM has become a mainstream manufacturing process with more materials and new technologies involved in this process. Undoubtedly, the most dramatic and challenging development of group of technologies has been the printing of metals. Nowadays, the use of AM for the production of parts for final products continues to grow. Organizations around the world are successfully applying the technology to the production of finished goods. AM allows design optimization and produces customized parts on-demand with almost similar material properties with the conventional manufactured parts. It does not require the use of coolants, fixtures, cutting tools and other assisting resources. The advantages of AM over conventional manufacturing can change the world of industry and lead to a new industrial revolution.

The analysis of today’s AM-business indicates that AM is swiftly growing in significance for many industries as it offers great possibilities to accelerate innovation, compress supply chains, reduce material and energy usage, and waste. In particular, the aerospace industry, which produces geometrically complex high-tech parts in small lot sizes, can benefit from AM’s ability to simultaneously reduce material consumption, and easily create aircraft parts with complex internal structures. Therefore, already today the aerospace industry is in the vanguard of the industrial application of AM. Progressively, AM also holds great promise for the automotive and electronics industry. For instance, vehicle and engines components could be realized using fewer parts and rapidly redesigned to minimize failures. The aerospace, automotive and electronics industry were identified to be promising for the future AM-business.

Various AM processes have been introduced to the commercial market by industrial companies located in different countries (the United States, Germany, Sweden, the United Kingdom, Israel, etc.). There are several systems to classify the AM processes, including one proposed by the American Society for Testing and Materials (ASTM) F42 Committee, which classifies the AM processes into seven areas as shown in Table 1. The AM processes can also be classified based on the state of the starting material used (see Table 2).



Table 1: The Seven AM Process Categories, as Classified by ASTM F42



Table 2: Select AM Processes and Working Principles

Key:
SLA
= stereolithography; MJM = multi-jet modeling; RFP = rapid freeze prototyping; FDM = fused deposition modeling; FEF = freeze-form extrusion fabrication; SLS = selective laser sintering; SLM = selective laser melting; EBM = electron beam melting; LMD = laser metal deposition; 3DP = 3-D printing; LOM = laminated objective manufacturing


References

1. A. B. Kair, K. Sofos: Additive Manufacturing and Production of Metallic Parts in Automotive Industry, MSc thesis, KTH Royal Institute of Technology, Stockholm, Sweden, June 2014;

2. J. Gausemeier, N. Echterhoff, M. Wall: Thinking ahead the Future of Additive Manufacturing-Innovation Roadmapping of Required Advancements, Heinz Nixdorf Institute, 33102 Paderborn Germany, 2013;

3. Technology Assessments, Chapter 6: Innovating Clean Energy Technologies in Advanced Manufacturing, Quadrennial Technology Review 2015, p.181-225, Accessed April 2018.

기술 자료 검색

검색할 어구를 입력하십시오:

검색 범위

본문
키워드

머릿글
요약

물리적 특성은 Total Materia 데이터베이스 내 많은 재질에서 검토하실 수 있습니다.

데이터는 규격의 공식 정보와 Total Materia의 강력한 상호 참조 표를 통해 검색 가능하며 이는 물리적 특성 데이터 검색에 매우 효과적일 것입니다!

신속 검색에 검색할 재질명을 입력합니다. 원하신다면 국가/규격을 지정하신 후 검색 버튼을 클릭합니다.


관심 있는 재질을 선택하신 후, 물리적 특성 링크를 클릭하셔서 선택된 재질의 데이터를 검토합니다. 물리적 특성 데이터 기록의 개수는 링크 옆에 괄호 안에 표시됩니다.


물리적 특성은 원래 데이터 값에 따라 표시됩니다. 규격에 의한 공식 데이터는 공식 탭에서 찾을 수 있고, 다른 출처를 통해 검색된 재질의 데이터는 자신의 탭에 표시 됩니다.


유사 재질 탭에는 원래 재질과 비슷하며 물리적 특성이 포함된 재질을 표시합니다. 등가 재질 검색 시에 매우 유용할 수 있습니다!


일반 탭은 특성 데이터에 대한 일반적인 개요를 제공하며 추가 조사를 위한 유용한 출발점으로 사용될 수 있습니다.


Total Materia 데이터베이스를 사용해 보실 수 있는 기회가 있습니다. 저희는 Total Materia 무료 체험을 통해 150,000명 이상의 사용자가 이용하고 있는 커뮤니티로 귀하를 초대합니다.