GARBSEN, GERMANY -- A new study from LPKF shows effects of changes in individual process parameters on stencil manufacturing.

As part of its research for "Quality Considerations for Stencil Applications," LPKF investigated a large number of quality criteria. The new white paper, available for download here, describes these factors and offers tips for achieving the best cutting results.

While laser machine software automatically sets most parameters to their optimal values when cutting of apertures in thin metal foils, special processing requirements are aided by knowledge about the relevant relationships.

LPKF product manager Florian Roick says the manufacturing of step stencils demonstrates this. In step-up stencils with reinforcements, sheet metal is applied by spot welding. The process gas, the laser focus position and the process gas pressure all affect the weld penetration depth and hence the durability of the entire stencil.

"For special processes, specific quality aspects can be emphasized with the help of the LPKF tech paper on stencil quality," he says.

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