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  1. VMSETHAN

    ALUMINUM ROLLER BURNISH SERVICE TEMPERATURES

    Our Director of Engineering is from Germany, so I have handed it off to her for evaluation. Thanks for the info!!
  2. VMSETHAN

    ALUMINUM ROLLER BURNISH SERVICE TEMPERATURES

    Thanks TVP, we were responding at the same time. I will look that up. You say "about 250"? If we got some confirmation on a 250-260 range there would be no worries.
  3. VMSETHAN

    ALUMINUM ROLLER BURNISH SERVICE TEMPERATURES

    We have talked to Faigue Tech in the past about their cold work and bushings. I will be asking them about this also. The the early version of this part was not roller burnished, but the OEM started to incoporates it later in production. It is a life limited part, so we assume the process was...
  4. VMSETHAN

    ALUMINUM ROLLER BURNISH SERVICE TEMPERATURES

    Good idea, I will look at that for info. Just to clarify, the final use of this part will NOT see a continuous 250F. During final assy it experiences the temps for a breif time(60 min) during an adhesive cure. Some concern has been raised wheteher this degree/time frame would do harm to the...
  5. VMSETHAN

    ALUMINUM ROLLER BURNISH SERVICE TEMPERATURES

    It is T-6. Our underststanding on the roller burnish is that it was implemented long asgo in the original product to increase fatigue life of the holes during operation.
  6. VMSETHAN

    ALUMINUM ROLLER BURNISH SERVICE TEMPERATURES

    Our company is producing a 6061 aluminum extrusion product which has a number of holes that require roller burnishing. The process itself has been successful, but I am looking for input on service temp limits of the part after the burnishing has been completed. I ask the question because we...
  7. VMSETHAN

    twisting rotorblades

    We are one of Erickson's primary sheetmetal/composite parts suppliers and have a long history with them. You are corrct in that they have the package for the S-64(E and F). It is my understanding that they did not, however, get the tail rotor drawings. Rumor has it that Sikorsky held those...
  8. VMSETHAN

    twisting rotorblades

    Yes, we are going STC/PMA. The STC approves the product, but the PMA approves the the manufacturing/QA process. They go hand in hand. This has been in progress for almost a year. We have completed several STC/PMA programs in the past for other parts and are fully aware of all the regulatory and...
  9. VMSETHAN

    twisting rotorblades

    I have contacted Hexcell, but am not real hopefull. We have talked to them before about composite issues and they are great, but I don't know if they have very much extrusion processing capability. Thanks for the tip. These blades are going on a restricted category a/c. Fires are one opf their...
  10. VMSETHAN

    twisting rotorblades

    My company is now in the process of manufacturing tail blades for a customer to go on their fleet of CH-54B skycranes. We have pretty much solved all the problems in resurrecting the parts except for the twisting of the aluminum spar. Does anyone have info on a facility that has done similar...

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