Laser Cover Removal for Automotive Busbars: The Precision "Scalpel" for New Energy Vehicle Precision Manufacturing

Automotive busbars are critical conductive components within the power battery systems of new energy vehicles. Fabricated primarily from copper or aluminum, they serve as high-current pathways for efficient electrical connection, transmission and distribution, functioning both as the "electricity highway" and a safety monitoring channel. Their operational stability directly determines the cruising range, fast-charging performance, vehicle service life and driving safety of new energy vehicles.

To enhance vehicle safety and mitigate risks of short circuits and electromagnetic interference, busbars are generally coated with insulating layers including paint films, oxide layers, nylon insulation and metal shielding layers. Nevertheless, at critical connection points where busbars interface with electrical components, the insulation at designated positions must be precisely stripped to fully expose conductive surfaces and guarantee stable, high-efficiency current transfer. This seemingly simple procedure of laser cover removal is actually a vital process that governs the electrical connection quality of busbars as well as the safety and reliability of new energy vehicle power systems.

Conventional busbar cover removal relies on chemical reagents or mechanical cutting tools, which frequently lead to substrate damage, burr residues and waste liquid pollution. These drawbacks can impair subsequent welding quality and create potential safety hazards. As new energy vehicle electric drive and busbar products evolve toward higher precision, complex structures and lightweight design, traditional processing methods can barely meet manufacturing requirements with increasingly prominent technical limitations. Laser cover removal technology, featuring high precision, high efficiency and great flexibility, has become a mainstream solution for precision machining of automotive busbars.

Laser cover removal is a non-contact processing technology. High-energy laser beams act selectively on insulating coatings of copper and aluminum busbars to strip insulation efficiently while achieving zero damage to base materials. The entire processing workflow of laser cover removal equipment is digitally and accurately controlled. Rapid switching of processing parameters enables flexible production of workpieces with diverse specifications and structures, greatly boosting production line flexibility and throughput.

Leveraging a fully self-developed comprehensive core technology system, Wuhan DOYA has long specialized in laser precision machining. Catering to manufacturing demands of the new energy vehicle industry, we provide one-stop precision processing solutions for automotive busbars integrating automatic copper bar bending and automatic laser cover removal. Custom process development and production line customization services are available to help customers upgrade to smarter manufacturing with superior quality, higher efficiency and stronger stability.

Core Advantages of Wuhan DOYA’s One-Stop Automatic Laser Cover Removal Solution for Automotive Busbars

01 Dual-Station High-Efficiency Machining for Higher Throughput

Fixtures are adopted for positioning. The dual-station interactive loading and unloading mode eliminates production downtime during material exchange, drastically improving overall processing efficiency.

02 CCD Visual Positioning for High-Precision Insulation Stripping

Equipped with a CCD visual system to locate circular holes on copper bars, the equipment performs targeted stripping while avoiding hole areas to prevent laser damage inside apertures and guarantee consistent processing quality. (Note: "COD" in the original text is a typo; the standard industrial vision system is CCD)

03 Multi-Axis Linkage with Wide Process Compatibility

Collaborative operation of X, Y and Z axis modules enables automatic focusing and visual positioning for copper bars with varying installation positions and heights, delivering efficient and precise machining.

04 Eco-Friendly Design with Complete Operational Safety

The machine features a partitioned full protective structure that separates the processing zone from the loading/unloading zone to block laser leakage during operation and ensure safe production.

Focused on the booming development of high-power electrical industries including new energy vehicles, wind power energy storage, AI computing infrastructure and aerospace, Wuhan DOYA will keep driving technological innovation. We will further integrate laser precision machining, automation and artificial intelligence applications to develop smarter, more stable and more efficient one-stop laser intelligent manufacturing solutions. Together with partners, we will seize opportunities in the intelligent manufacturing era and continuously empower China’s new energy industry to advance into a new phase of high-quality development.