Transmission Control Modules (TCMs) regulate gear shifting, torque conversion, and transmission temperature, ensuring smooth and efficient vehicle performance. These modules are installed in harsh undercar environments, exposed to moisture, road salt, vibration (10-2000Hz), and temperature fluctuations (-40°C to 105°C). Traditional welding methods may introduce vibration or thermal stress that damages sensitive internal electronics, leading to shifting errors or module failure. DaokeDao laser welding provides a vibration-free, low-heat joining solution for TCM housings made of PC/ABS and PA. The laser energy is precisely controlled to minimize the heat-affected zone (≤0.25mm), preserving the dimensional accuracy of internal components (tolerance ≤±0.02mm). It forms a dense, chemical-resistant weld that withstands road salt and transmission fluid, ensuring long-term reliability. Our systems integrate 3D vision alignment to adapt to complex TCM housing contours, supporting fast cycle times (9-13 seconds per unit). With full process traceability and compatibility with automated production lines, DaokeDao laser welding helps automotive suppliers reduce TCM failure rates by up to 32% and meet strict quality compliance standards.
