Therefore, the manufacturer should strictly inspect the raw material of green laser

Metal vapor due to the limitations of the external medium and the formation of ultra-high pressure shock wave (maximum the 10GPa about) the impact area. With the passing of the shock wave to the base body, a compressive stress zone at the surface, and the emergence of some of the microscopic properties change, thereby improving the mechanical properties of the metal. Chan use nominal power 10GW/cm2, and the pulse time is 20 ~ 40ns pulse Q-switched YAG laser to make cast iron, the impact of the 7075 and 7475 aluminum alloy hardening, impact amplitude of 5.6GPa. Two aluminum alloy fatigue life is improved. The reason is that the surface residual compressive stress. [12] believe that the distinction between in order to get the surface residual compressive stress, and deal with the role of thermal stress and shock waves. Experiment shows that the absorbing coating surface compressive residual stress can be the only shock waves through the material. And the maximum pulse current of this kind of battery used by     green laser pointer    is 800mA.
The region deformed by tension, but subject to the constraints of the surrounding materials, the constraint region is a compressive stress zone. If the heat into the region, the expansion will lead to deformation will produce tensile stress in the cooling. Laser shock hardening of the residual stress levels can get the shot peening similar, but smaller surface damage and greater depth of penetration. The laser cladding. Laser cladding, also known as laser cladding, is to use a certain power density laser beam (scan) plus a pure metal or alloy coating on the metal surface [13], completely melted, the metal substrate surface micro-melting, condensation a low dilution of the coating layer formed on the substrate surface so that the substrate to strengthen the process of laser cladding melting occurs mainly in the plus pure metal or alloy. The workshop can acquire the raw material of   laser pointer  .
The purpose of the substrate surface micro-melting and applied to metal seal metallurgy. Combined to enhance the coating and substrate binding, and to prevent the interdiffusion of substrate elements and cladding elements and change the composition and performance of the coating [13]. There are two main laser cladding process: a preset coating, electroplating, vacuum deposition, plasma spraying, flame spraying, bonding methods such as metal powder prior to cladding coated on the substrate surface, then use the laser remelting, this method can be called the laser coating; the other is synchronized feeding method, the process of laser irradiation, powder or bar, filamentous pure metal or alloy continuous into the molten pool, which with gas powder blown into the molten pool at an angle method known as laser spraying. All parts and components of    green laser pointer   should be purchased from the qualified supplier.
Laser cladding and alloying similar. Upon request made of wear on the surface properties of low-cost steel, corrosion resistance, heat resistance, impact resistance and other high-performance surface to replace the expensive overall high grade alloy to save the precious metal materials. Coating of small organizations, generally without pores and holes. Overlying hard TIC particles on the surface of the high-speed steel by laser cladding TIC melting layer, and then rapidly quenched. The obtained surface coated high hardness HV2100 2700, up to HV3100 [14]. High-speed steel by laser cladding of life for ordinary heat treatment of steel, 8.4 times [15], up to 11.2 times. Can be expected that this approach will be widely used tool of the processing of difficult to cut materials. Therefore, the manufacturer should strictly inspect the raw material of    green laser .
More often used in laser cladding and the substrate combination of the following children: stainless steel, mild steel; stainless steel - aluminum; mild steel, stainless steel, alloy and soft steel; a brass carbide; a soft iron boron steel; nickel mild steel; chrome a Chin. Apart from the above, the laser cladding process has the following unique advantages: dilution can be controlled to reduce the local heating of the heat distortion, precision control components Dimensions obtain good thermal binding and fine quenched structure. Laser facilities sleeve. The laser glazing molten metal surface using a laser beam and then the cooling rate of 106 ° C / s, rapidly quenched and solidified the eve of the alloying elements and carbon diffusion is suppressed. Diameter of    green laser led   at the end of the laser beam is less than 18mm.