| 摘要 |
Method for joining together two or several overlaying sheet formed members (4, 5), metal or non-metal, at which a coaxial arrangment of a punch (2), a matrix (1) and an anvil (3) are caused to cooperate by means of their relative movements. The punch (2) and anvil (3) are caused by means of applied forces to carry out a first part of a movement coaxially towards said matrix (1) to a first relative position between punch and matrix. The punch starts to cut through the sheet formed members along part of its perimeter. During a second part of the movement towards said matrix (1) to a second relative position between the punch (2) and the matrix (1) which is dependent on the applied forces, the thickness, the number and the material of the sheet-formed members (4, 5), the punch ends the cutting operation and said anvil, in cooperation with said matrix, deforms said sheet-formed members outside the cut-out and formed portions along the edge of said portions. |
