APPARATUS FOR SEALING HOLE OF MATERIAL

摘要

PURPOSE: A device for sealing the processing hole of a workpiece is provided to enhance the productivity and the reliability of a product through the failure decrease of a workpiece since it is possible to check the crack generation through a leak inspection even if there is a crack around the processing hole of a workpiece. CONSTITUTION: A device for sealing the processing hole of a workpiece comprises an actuating member(40), and an expansion member(50). The actuating member is connected to a cylinder device(30) to move. The expansion member is arranged in order to surround the actuating member. The expansion member is inserted into the processing hole of a workpiece. The expansion member is expanded as the actuating member moves. The expansion member seals the processing hole.