2023年9月8日 · Cold metal transfer (CMT) process could create a spatter-free material filling process to improve the droplet detachment and reduce the heat input through supplying optical pulse waveform of electric arc and a filler wire motion as consuming electrode.

The back and forth movement (reversing) of the welding wire—at up to 170 Hertz—produces an exceptionally stable arc. This results in a 33% reduction in heat input and a welding speed almost twice as fast as with conventional dip transfer arc.

2024年9月15日 · In this study, thin-walled structural components were fabricated using wire-arc DED with two different arc modes: CMT and CMT + PA. Significantly enhanced bimodal microstructures and superior mechanical properties were achieved under the CMT + …

2023年2月1日 · Cold metal transfer (CMT), as an innovative welding process, completes droplet transfer by coupling between the optimized pulse arc waveforms and the retractive movement of filler wire by the servomotor, it nearly requires no electromagnetic force when droplet separated from the tip of filler wire [6].

2023年2月17日 · This article introduces cold metal transfer-based wire arc additive manufacturing (CMT-WAAM), starting with an overview of CMT-WAAM and the detailed mechanism of the cold metal transfer (CMT) process and its selection preference over the other variants of WAAM.

cmt advanced：更高沉积速率、很好间隙搭桥能力以及更高焊接稳定性 比CMT工艺更“冷”的CMT Advanced工艺，通过正负极点击的循环调整实现沉积速率的精准调整。

借助 CMT Twin，伏能士将两个独立运行的弧焊工艺结合到一个工艺中。 这种新颖的双丝解决方案允许用户利用两个冷金属过渡（CMT）工艺，或将 CMT 工艺与 GMA 脉冲焊接工艺相结合，所有这些都在一个系统中完成。

2024年12月2日 · The study encountered that different CMT arc modes have a notable influence on porosity levels in both single and multi-layer deposits. Direct CMT exhibited the highest gas porosity, whereas the CMT pulse advance mode was more effective at reducing porosity due to its lower heat input and efficient oxide removal from the wire.

2022年11月16日 · Cold metal transfer (CMT), developed by Fronius, provides a coupling between the filler wire feeding/retraction motion and metal droplet detachment through a special digital control system, which can complete the droplet transfer under an extremely low short circuit current smoothly.

2021年10月28日 · Wire arc additive manufacturing (WAAM) is a kind of additive manufacturing technology, which uses arc as a heat source and wire as a feedstock material. The WAAM is characterized by its high heat input, which makes it efficient when depositing large-scale products due to its high deposition rate.