Properties of Ti-6Al-4V spun formed fuze supports
Spin forming is designated as the primary fabrication process for the Ti-6A1-4V, W-87 fuze support. This process reduces the amount of rough machining during production, the cost of the starting material and the lead time from order to delivery of finished parts compared with parts made from forgings. However, because the amount of deformation from the spin forming process varies greatly within the part, the properties resulting from spin forming the fuze supports are unknown. This study shows that the properties and microstructure of the highly deformed walls of the fuze support are similar to those of forgings, while the properties and microstructure of the lightly deformed nose are similar to those of the parent plate. A solution treatment at 1750/sup 0/F/1h/WQ (954/sup 0/C) followed by a 900/sup 0/F (482/sup 0/C) four hour age gives the desired properties. Additionally, microstructural evaluation shows that the temperatures during spin forming are maintained within desired limits and that no significant microstructural changes occur during subsequent elevated temperature processing of the finished part. This study shows that solution treated and aged parts meet all required properties for all conditions to which the fuze supports will be subjected.
- Research Organization:
- Sandia National Labs., Livermore, CA (USA); Allied Corp., Kansas City, MO (USA). Bendix Kansas City Div.
- DOE Contract Number:
- AC04-76DR00789
- OSTI ID:
- 5723347
- Report Number(s):
- SAND-85-8218; ON: DE85011968
- Country of Publication:
- United States
- Language:
- English
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