YAG Laser Face Joining Technology of A6061 Aluminium and SPCC Plates

Laser and pressure roll combination joining tests on SPCC-A6061 plates were carried out by changing the roll pressure. Adhesive strengths on SPCC-A6061 were measured by peel tests. When the pressure increased from 80 MPa to 320 MPa, the adhesive strength increased from 10 N/mm to 30 N/mm. It was obvious that the higher pressure brought some good influence to the joint interface of the metals. From observation results on the joint layer by EDX, we recognized ductile compounds Fe3Al and metallic bonds when 320 MPa pressure was laid on by twin rolls. Moreover, it resulted in the achievement of high adhesive strength during the joining of SPCC-A6061 plates.