Transforming vehicle-borne laser point cloud to grid point cloud

Investigation on oxygen-equilibrium effects of laser ignition of energetic materials;

Effect of optical parameters of solid propellant on the laser ignition delay;

Laser ignition of NEPE propellant;

In this paper, laser spot welding was used to join a NdFeB permanent magnet to an SPCC (steel plate cold commercial) steel in an effort to achieve joining of magnet/steel dissimilar materials with high speed and quality, with the joint formation mechanism, hardness, strength, and fracture behavior analyz.

However, laser spot welding of aluminum has some problems, such as instability, porosity, crack, crater, and low tensile strength.

In the field of laser processing, laser spot welding technology gradually becomes the focus of people s attention for its high-precision and high-efficiency, as a new type technology.

The most popular detection methods both at home and aboard are introduced,and a method on the position control system for beam focus is presented during laser beam cutting process based on CCD,which can accurate detect and control the laser focus position during laser beam cutting process by using the laser triangulation and CCD imaging system coordination digital image proce.