The key point of quality control of wire harness IPC620

The key point of quality control of wire harness IPC620     Contact us to get IPC620 english version printed book   I. Processes Involved in Wire Harness Manufacturing   The processes involved in wire harness manufacturing include but are not limited to:   Cutting: Refers to cutting electronic wires or cables to the required length using machines or manually, without damaging the insulation or outer sheath.   Outer Sheath Stripping: The outer sheath usually refers to the cable sheath. The outer sheath stripping machine should not scratch or cut the insulation of the core wires when stripping the outer sheath. Any cuts, breaks, cracks or splits in insulation (not shown). u Insulation thickness is reduced by more than 20% . u Uneven or ragged pieces of insulation (frays, tails, and tags) are greater than 50% of the insulation outside diameter or 1 mm [0.039 in] whichever is more . u Insulation is charred . u Insulation is melted into the wire strands .   Core Wire Stripping: Adjust the core wire stripping machine to the required size for stripping, and be careful not to scratch or cut the copper wires.   Crimping: Select the appropriate blade according to the terminal size. Crimp the prepared wire with the terminal crimp part using the blade, ensuring a firm crimp and that the appearance and pull force of the crimped terminal meet the standards.   Put on connector: Insert the qualified crimped terminal wires into the matching connector housing. A clear click sound will be heard when the connector is fully inserted.   Wire Twisting: Adjust the wire twisting machine to the appropriate height to ensure that the copper wires are not flattened or tangled, and the twisted conductor is in a uniform spiral shape.   Tinning: Apply flux to the prepared...