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The same tools and control systems developed for low plasticity burnishing (LPB™) can of course be used to deliberately create higher amounts of cold work when warranted. This process, termed Controlled Plasticity Burnishing (CPB) at Lambda, can provide a precisely controlled amount of cold working to achieve a targeted increase in yield strength or hardness along with a controlled depth of compression. Quality control and process robustness of CPB are comparable to LPB™, differing only in the amount of cold working that is introduced and controlled during processing.

In applications requiring improved yield strength, such as some friction stir welds, or grain size refinement by cold working followed by subsequent heat treatment, CPB can be used to modify and achieve desired material properties during manufacturing. Lambda's x-ray diffraction laboratory verifies optimized CPB processing by diffraction line broadening and micro-hardness measurement.