摘要:
A method of repairing an integrally bladed rotor includes removing a portion of the integrally bladed rotor to create a void in an airfoil, completely filling the void with a single replacement material, and laser shock peening the replacement material. Laser shock peening the replacement material imparts mechanical properties in the replacement material substantially the same as those in the forged material.
摘要:
A laser guided nano-brazing method for a reinforced aluminum composite material having high volume fraction silicon carbide particles, comprising 4 steps: nanocrystallizing the surface of the reinforced aluminum composite material having high volume fraction silicon carbide particles, preparing solder material, assembling pieces to be soldered, and dual-beam laser brazing. The use of nano-technology for the brazing of reinforced aluminum composite material having high volume fraction silicon carbide particles, and the use of dual-beam laser technology for brazing temperature field control enhance the humidity during the brazing process of said material and filling ability of the solder material, and satisfy the strict requirements of electronic packaging.
摘要:
A method of cutting a non-metallic material along a curved line, is disclosed. The method includes forming an initial crack on a surface of a non-metallic material such that the initial crack is disposed on a curved line along which the non-metallic material is cut, and irradiating a laser beam along the curved line to apply thermal shock to propagate along the curved line to cut the non-metallic material along the curved line. Therefore, edge portions of the non-metallic material may not be damaged and the non-metallic material may be clearly and quickly cut.
摘要:
A method for making an electromechanical chip using a plurality of transparent substrates, comprising the steps of: machining, using photoacoustic compression, full or partial voids in at least one of the plurality of substrates. The plurality of transparent substrates are stacked and arranged in a specific order. The transparent substrates are affixed and sealed together. The chip may be sealed by laser welding or adhesive.
摘要:
An improved laser shock hardening method and apparatus which can eliminate spattering of a liquid and waving of the liquid surface upon laser irradiation, and can stably irradiate a workpiece with a laser beam. In a laser shock hardening method for carrying out surface processing of a workpiece in contact with a liquid by irradiating through the liquid the surface of the workpiece with a pulsed laser beam intermittently emitted from a laser irradiation device, the disclosed method provides a solid transparent to the wavelength of the laser, serving as an entrance window to the liquid surface; allowing the liquid to be present in the light path of the laser beam between the solid and the surface of the workpiece; and allowing the laser beam to enter through the solid and irradiating through the liquid the surface of the workpiece with the laser beam.
摘要:
A method for producing, on the surface of a wall capable of being swept by a fluid, raised elements forming disruptions of the boundary layer is disclosed. The method includes applying laser shocks to the surface so as to create peaks on the edge of the impact zones such that the peaks form the disruptive raised elements.
摘要:
A system for determining accessibility of a tool to an object is provided. The system provides for selecting one or more sections on the object to be laser shock peened, selecting a region of interest on the one or more sections and determining a set of feasible solutions to access the selected region of interest on each of the one or more sections via use of an accessibility system.
摘要:
A stress treatment device has an operating unit including a head unit performing peening by irradiating an inside of a hole formed in a structure with laser to form a compressive stress region in the hole; a laser unit having an optical fiber guiding the laser to the head unit; a jetting unit jetting liquid into the hole; and a support part supporting the optical fiber in a manner of allowing the jetted liquid to flow through and being fixed in the head unit.
摘要:
Disclosed is a method of laser shock peening an aluminum alloy fan airfoil to improve its resistance to failure by notched fatigue. In one example, the airfoil is made from 7255 aluminum alloy. The laser has a power density of at least 10 GW/cm2 (220×109 BTU/hr·in2) and a pulse width of
摘要翻译:公开了一种铝合金风机翼型的激光冲击硬化方法,以提高其耐缺陷疲劳性能。 在一个示例中,翼型由7255铝合金制成。 该激光器具有至少10GW / cm 2(220×109BTU / hr·in2)的功率密度和<50ns的脉冲宽度,以产生延伸深度为0.030-0.040英寸(0.8-1.0mm)的冲击硬化层 )在物体表面下方。
摘要:
Sealing disks (44) for producing peel-off lids comprising lid rings having a peel-off foil sealed onto the lid ring are produced in that an annular sealing part made of steel (54) is fastened on a main plate (53) made of copper, for example by electron-beam welding, whereupon the sealing part is hardened by laser hardening. In this way, a sealing disk having good thermal conductivity and high wear resistance can be favorably produced.