Supporting contoured sheet of material during machining operations

The invention relates to supporting a contoured sheet of material during machining operations, in particular provides a machining support configured to reduce spring back of a sheet following a machining operation on the sheet. The machining support comprises a porous material with a plurality of surfaces including a support surface having a contour configured to contact and support the sheet; sealing material covering each of the plurality of surfaces except the support surface; and a vacuum port configured to provide a vacuum to the porous material. 涉及在加工操作期间支撑成形的材料片。具体地提出了一种加工支撑物，该加工支撑物被配置为减少对片材进行加工操作之后片材回弹。加工支撑物包括：具有多个表面的多孔材料，所述多个表面包括具有轮廓的支撑表面，该轮廓被配置为接触并支撑片材；密封材料，该密封材料覆盖多个表面中的除了支撑表面之外的各个表面；以及真空口，该真空口被配置为向多孔材料提供真空。