Frequently Asked Questions
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Can the sound deadening solutions be used with deep drawing? The drawability of Sonphonon Automotive is equivalent to that of conventional steel of the same gauge. However, we recommend the following: Adjust clearances and pressure on the blank holder in order to decrease sensitivity to folding Adapt tool design in order to avoid metal-polymer delamination Bending is the most difficult forming operation; it requires the use of appropriate techniques. Springback is greater with Laminated sheets than with monolithic steel sheets. Therefore, we recommend decreasing the bending radius and selecting low yield strength grades such as Sonphonon Automotive. In order to avoid peeling of the sandwich near the cut edges, we suggest that the minimum distance between the bend and the edge should be at least ten times the thickness of the sheet.
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