Design and Manufacture of Laser Welding Equipment for Automotive Components

The design and manufacture of laser welding equipment for automotive components involve creating a mobile support structure with clamping mechanisms and integrating a welding head with robotic arms for flexibility. Technical parameters such as laser power (50W–4kW), welding speed (0.1–10m/min), weld width and depth (0.1–5mm), and precision (±0.1–±0.5mm) are carefully set. The equipment is used for welding automotive bodies, structural components, powertrain parts, and new energy vehicle components. High-precision machining and automated assembly ensure reliability. Parameter optimization and protective gas systems enhance welding quality. The equipment supports lightweight and high-strength applications, contributing to vehicle safety and efficiency.

Design and Manufacture of Laser Welding Equipment for Automotive Components

I. Design

• Equipment Structure Design:
  • Mobile Support Mechanism: It includes a support base and four clamping and fixing mechanisms, with mobile cushioning mechanisms evenly distributed around the bottom.
  • Welding Head Integration: The laser welding equipment typically integrates the welding head with a robotic arm for flexible operation.
• Technical Parameter Design:
  • Laser Power: The power range is generally from 50W to 4kW, depending on the thickness and type of the welding material.
  • Welding Speed: The speed range is from 0.1m/min to 10m/min.
  • Weld Width and Depth: The width and depth are usually between 0.1mm and 5mm.
  • Welding Precision: The precision range is from ±0.1mm to ±0.5mm.
  • Defocusing Amount: Positive and negative defocusing are adjustable, with negative defocusing providing greater penetration depth.
  • Pulse Parameters: Pulse duration, frequency, and peak power are adjustable, with short pulses suitable for small and complex welding.

II. Manufacture

• Manufacturing Process:
  • High-Precision Machining: Ensuring the precision of the welding head and mobile support mechanism.
  • Automated Assembly: Enhancing the stability and reliability of the equipment.
• Equipment Commissioning:
  • Parameter Optimization: Adjusting laser power, welding speed, and other parameters according to actual welding requirements.
  • Protective Gas System: Using inert gases to expel plasma and protect welding quality.

III. Technical Parameter Table

IV. Application

• Automotive Body Welding: Used for welding different parts of the body, such as the trunk lid, door inner panel, etc.
• Body Laser Assembly Welding: Used for welding sub-assemblies or assemblies of the white body to increase body stiffness.
• Typical Components: Such as intake and exhaust valves, clutches, bumpers, etc., to meet the requirements of high strength and lightweight.
• New Energy Vehicle Key Components: Precision welding of battery packs and air outlets to meet the requirements of lightweight and high strength.

V. Application Scope Table

VI. Development Trends

• Automation and Intelligence: Using computer control and robotic technology to improve production efficiency and welding quality.
• High Precision and High Efficiency: Continuously optimizing welding process parameters to enhance equipment performance.
• Lightweight and High Strength: Reducing vehicle weight and improving the integration and safety performance of the body through laser welding technology.