Material of headlight

The lightweight metal on the headlamp refers to the super-strong lightweight structural metal, which has a very high specific strength and specific modulus, or rigidity ratio.

Titanium alloys and aluminum alloys for headlamps have the characteristics of low density, high specific strength, and good corrosion resistance. They are also widely used in aerospace, transportation, vehicle manufacturing, and chemical industries. The complex working conditions in modern engineering pose a higher challenge to the service performance of the workpiece, and promote the development and application of composite structures. The composite component composed of titanium alloy and aluminum alloy can maximize the performance characteristics of the two materials.

Due to the significant differences in thermophysical and mechanical properties between titanium alloy and aluminum alloy, many problems such as pores and cracks are prone to occur during the welding process of the two. Among them, the formation of intermetallic compounds due to metallurgical reactions is one of the important reasons for the deterioration of the joint performance of Ti/Al dissimilar materials. It has always been a hot spot in the field of dissimilar material welding to efficiently realize the welding of titanium alloys and aluminum alloys and obtain satisfactory joint performance.