Lambda Technologies Optimizes Shot Peening

Optimized Peening of 4340 Steel

Optimizing coverage limits the occurrence of repeated impacts, improving thermal stability, reducing surface damage and media consumption, and yielding up to 5x improvement in production rates.

Lambda Technologies is now offering their patented shot peening optimization method as a service to improve production rates, reduce costs and increase fatigue life. With this cost-effective tune-up, the peening specifications of many components can be tailored to achieve optimum fatigue results with faster processing times and lower cost using existing production facilities and equipment.

Research at Lambda Technologies into the thermal and mechanical stability of peened surfaces led to the development of the optimized peening technology nearly 15 years ago, and the company has been perfecting the method since. Lambda found that the coverage required to achieve a depth and magnitude of compression could be far lower than that typically used in production peening. For example, in some alloys, coverage as low as 20% can produce the same depth and magnitude of compression as 100% or greater coverage. Optimizing coverage limits the occurrence of repeated impacts, improving thermal stability, reducing surface damage and media consumption, and yielding up to 5x improvement in production rates.

Lambda’s shot peening optimization protocol is applied directly to parts shot peened in the client’s production equipment, so the benefits are immediately realized. Peening parameters are efficiently developed to minimize peening time, media consumption and processing cost while achieving optimum part performance, appropriate to the intended application. Beneficial residual compression, cold work, finish, phase transformations, fatigue and even corrosion performance are verified in Lambda’s ISO accredited surface integrity laboratories. “We are thrilled to be able to offer this service to the rest of the world,” says John Cassidy, Project Quality Engineer for Lambda. “There’s vast potential for improvement in efficiency and quality out of production shops and I’m glad we can be a part of it.”

Lambda Technologies is an innovative company incorporating a premier materials research…

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