日本神户制钢所最近开发了机器零部件用的铁粉烧结体的焊接材料。作为钢材一个种类的铁粉烧结体,因含碳量很高,内部残存有空穴,致使焊接时容易产生裂纹,难以进行焊接加工。本公司采取添加锰和铝等的方法制成,使铁粉烧结体成为可用激光焊接的材料,成功地防止了焊接时的裂纹和空穴的生产。 Kobe Steel has recently developed a welding material for iron powder sintered body for machine parts. As a type of steel, an iron powder sintered body is highly carbon-containing and has holes remaining inside, resulting in cracks easily during welding and making it difficult to perform welding. The Company adopted the method of adding manganese and aluminum, etc., so that the iron powder sintered body becomes a laser-weldable material, successfully preventing cracks and cavities during welding.