In recent years, product miniaturization and multifunctionalization have progressed, while the importance of process consolidation has increased. This paper examines processes involving the use of a laser to treat and mold small components. Based on consistencies between the laser quenching and forming processes, laser quenching-forming has been proposed as a combined method. Whereas conventional laser forming involves the use of a temperature gradient mechanism, laser quenching-forming often requires the use of a buckling mechanism. The deformation behaviors of the buckling and temperature gradient mechanisms during laser irradiation were analyzed, and a method to control buckling during laser scanning is proposed.

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A stable sapphire substrate manufacturing processing method is required because of the widespread adoption of light emitting diodes (LEDs) due to their high energy saving performance. This study was performed to develop a novel chemical mechanical polishing (CMP) method to achieve stabilization of substrate profiles in CMP processing of sapphire substrate. This paper proposes a planetary motion-assisted CMP method, in which self-revolution motion is added to substrate rotation by a planetary gear mechanism to achieve the complicated movement trajectory of the substrate. In particular, the relative friction distance of the whole surface of the substrate in the planetary motion-assisted CMP method is simulated, and a series of experiments were conducted through prototyping of dedicated equipment. In comparison to the conventional CMP method used to polish multiple substrates, the planetary motion-assisted CMP method can both decrease the total thickness variation and allow fabrication of similar profile substrates simultaneously.

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To fabricate silicon negative electrodes for high-capacity lithium-ion batteries, high-pressure sintering experiments were performed using a mixture of silicon cutting chips, obtained from a fixed-abrasive diamond wire saw slicing process of silicon ingots, and metal nanoparticles. Moreover, a new negative electrode structure was proposed by embedding wire-type current collectors within the sintered silicon-aluminum composite. The microstructure, mechanical properties, and battery performance of the sintered composite were investigated under various sintering conditions. The sintered composite had satisfactory mechanical and electrical performance for a lithium-ion battery electrode.

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