Abstract The Ice abrasive water jet technology uses cryogenically cooled ice particles instead of the mineral abrasive used in the Abrasive water jet technology. The aim is to avoid contamination of workpieces with mineral abrasives and to reduce the environmental impact of this technology. The ice particles are sucked into a high-speed water jet with speeds of up to 600 m∙s-1 using the Venturi effect. Direct observation of the process is very difficult due to the extreme operating conditions. We have clearly shown that at least some of the ice particles, which have cryogenic temperatures when entering the high-speed water jet, neither completely melt nor are completely crushed in contact with the jet. Further on, the erosion capability of ice particles was evaluated by blasting the aluminium and glass surfaces at two impinging angles and compared to garnet mineral abrasive, showing that ice particles have the potential to generate similar damage in the workpiece material as garnet. These findings pave the way for exploring the potential of abrasive waterjet technology in a wide range of new applications, such as food processing, medical implant and turbine blade manufacturing, and post-processing of parts manufactured with additive manufacturing technologies. Ice abrasive water jet (IAWJ), IceJet, ice particles, cryogenic temperatures, high-speed water jet, planar laser induced fluorescence (PLIF), blasting, erosion

中文翻译：

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高速水射流内低温冷却冰粒的观测

摘要 冰磨料水射流技术使用低温冷却的冰粒代替磨料水射流技术中使用的矿物磨料。目的是避免矿物磨料污染工件并减少该技术对环境的影响。利用文丘里效应，冰粒被吸入速度高达 600 m∙s-1 的高速水射流中。由于极端的操作条件，直接观察过程非常困难。我们已经清楚地表明，至少有一些冰粒在进入高速水射流时具有低温，在与射流接触时既不会完全融化也不会完全压碎。进一步，通过在两个撞击角度对铝和玻璃表面进行喷砂并与石榴石矿物磨料进行比较来评估冰粒的侵蚀能力，表明冰粒有可能在工件材料中产生与石榴石类似的损坏。这些发现为探索磨料水刀技术在广泛的新应用中的潜力铺平了道路，例如食品加工、医疗植入物和涡轮叶片制造，以及使用增材制造技术制造的零件的后处理。冰磨料水射流 (IAWJ)、IceJet、冰粒、低温、高速水射流、平面激光诱导荧光 (PLIF)、爆破、侵蚀 这些发现为探索磨料水刀技术在广泛的新应用中的潜力铺平了道路，例如食品加工、医疗植入物和涡轮叶片制造，以及使用增材制造技术制造的零件的后处理。冰磨料水射流 (IAWJ)、IceJet、冰粒、低温、高速水射流、平面激光诱导荧光 (PLIF)、爆破、侵蚀 这些发现为探索磨料水刀技术在广泛的新应用中的潜力铺平了道路，例如食品加工、医疗植入物和涡轮叶片制造，以及使用增材制造技术制造的零件的后处理。冰磨料水射流 (IAWJ)、IceJet、冰粒、低温、高速水射流、平面激光诱导荧光 (PLIF)、爆破、侵蚀