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Sigma Labs, Inc. Message Board

  • harit_rc harit_rc Jun 6, 2013 4:17 PM Flag

    Cost savings result in Improved Design, Engineering, Headcount Hours, Procurement Lead Time & Supply Chain

    Cost savings in this area result in margin improvement which flow thru and are administered to companies
    the like of Sigma Labs. Here's a little something extracted from an article talking about
    Pratt & Whitney's program on AM with UConn Lab on Pratt's Pure Power 1500G engine ...

    “A lot of aerospace companies are looking at this long and hard,” said Tim Caffrey, Associate Consultant at Wohlers Associates. “Production quantities in aerospace are a good match for additive parts; they often don’t have the high volume to justify the high cost of tooling.”

    As additive programs expand, engine designers are learning how additive processes can benefit them. Additive processes give engineers more freedom to innovate while bringing significant cost benefits.

    “It changes the idea of what you can design; you can do curved passages so you get the most efficient components,” DiPerna said. “On certain components costs drop around 30%.”

    This decrease in production costs pales compared to the savings that can be gained in prototype and testing environments. Short turnaround times are extremely beneficial in this phase.

    “During development, if the engine has to be shut down a week while you wait for a part, it can cost in the seven figures if you count everything,” Prete said. “With additive parts, there are times when you can go from the sketch of a part to a functioning part in less than a week. It only takes 18-30 hours to do additive processing for many of the parts we’ve done.”

    Prete also noted that P&W is taking many steps to ensure that the additive parts meet or exceed the strength and reliability levels of conventional metal components.

    “We do a lot of work characterizing the powders, specifying materials, the size of the particles, etc.,” he said. “For laser sintering, you have to understand the heat and the laser current, as well as the time to let the part cool before you hit it again with the laser.”

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    • “For laser sintering, you have to understand the heat and the laser current, as well as the time to let the part cool before you hit it again with the laser.”

      That is a key part of SGLB's tech, the heat management algorithm's. The reason SGLB is such a good fit here, is the CEO has about 20-30 years experience in all kinds of high tech welding technology, Jumping to 3d printing in metal (which is really more like welding with a laser) is right up his alley, he will be in such a comfortable arena there I can only see it being a success.

 
SGLB
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