Novel Stereolithographu System for Small Size Objects

Release Time:2025-04-30  Hits:

• Date:2025-04-30
• Title of Paper:Novel Stereolithographu System for Small Size Objects
• Journal:Rapid Prototyping Joural
• Summary:Purpose – To satisfy the demands for rapid prototyped small-size objects with intricate microstructures, a high-resolution stereolithography (SL) system is developed.
       Design/methodology/approach – This novel SL system consists of a single mode He-Cd laser, an improved  optical scanning system, a novel recoating system and a control system. The improved optical system consists of a beam expander, an acoustic-optic modulator, a galvanometric scanner and an F- lens; the recoating system consists of roller pump, resins vat with an integrated high-resolution translation stage and part building platform and a scraper. Experimental studies were performed to investigate the influences of building parameters on the cured line width and depth.
       Findings – With the SL system, a laser light spot with a diameter of 12.89?µm on the focal plane and resin layers with a thickness of 20?µm have been obtained. The experimental results indicate that cured depth and width increase with the ratio of laser power to scanning speed, and cured line with a width of 12?µm and a depth of 28?µm was built, which showed the capability building microstructures with this new SL system.
      Research limitations/implications – The building area limited to 65?×?65?mm, is smaller than that of current SL system.
      Practical implications – Small objects with intricate microstructures can be fabricated with the SL system.
      Originality/value – The high-resolution SL system provides a solution to the problem that has hampered the progress of SL process into a high resolution ranges below 75?µm.
• Co-author:Xu Guangshen,Zhao Wanhua等
• Translation or Not:No
• Date of Publication:2006-01-21