האתגרים ודרכי ההתמודדות בהדפסה תלת ממדית של מבני תעופה

מאת ליאור זילברמן, יו"ר הכינוס- תלת ממד / יו"ר מאגד עתיד לפיתוח טכנולוגיות הדפסה תלת ממדית של מבני תעופה מטיטניום

The art of additive manufacturing (AM) allows in many cases more design freedom that enables production of more weight optimized and functional articles. Other advantages are material savings and shorter lead times which have a large economic value. AM is a relatively new production method where objects are built up layer by layer from a computer model. The question if it is suitable to be used in the aviation industry which is pursuing for high-performance aero-structures at a competitive price.

AATiD, Advanced Additive Titanium Development, Consortium was established on 2015 within the support of the Israeli Chief Scientist in order to develop advanced technologies for design and three-dimensional printing of optimized complex aero-structures made of titanium alloys.

AATiD`s vision is to upgrade the Israeli industry by exploiting existing technologies that could design and print optimized parts. This lecture will describe the challenges and ways of coping with three-dimensional printing of these parts and qualifying them to use as aero-structures.

פרסום

AATiD’s Major Tasks and Challenges are:

פרסום

• Develop a methodology for selecting a printer and parts that should be produced by Titanium printing
• Develop a methodology for qualification of printed Titanium materials based on:
  • ASTM F3049 − 14: Standard Guide for Characterizing Properties of Metal Powders Used for Additive Manufacturing Processes
  • ASTM F2924 − 14: Standard Specification for Additive Manufacturing Titanium-6 Aluminum-4 Vanadium with Powder Bed Fusion
• Use topology optimization to achieve superior aero-structures design compared with traditional design, in terms of weight, cost and performance
• Develop optimal processes for production and assembly of printed Titanium aero-structures
• Predict precisely printed Titanium properties using process simulation software
• Embed printing technologies constraints in the structural design process