Tech Topics

Resistance weld defects & failures

Resistance welding aims to make a strong joint between materials with a good weld nugget of the desired size and shape. However, poor weld results may occur with weld defects and failures due to various causes. Based on scientific research and experimental studies of numerous weld results with actual materials and process conditions, we have … Continue reading

Root cause analysis of resistance welding problems

Based on systematic studies of resistance welding problems in lab tests and industry applications, we have determined that all root causes can be classified into three categories: design factors, process settings and dynamic issues. These insights and understandings can help solve welding problems more quickly and effectively. Download Guideline for Root Cause Analysis of RW … Continue reading

Optimization of Resistance Spot Welding

Resistance spot welding (RSW) is widely used for joining sheet metal components. It operates with three process parameters: current, force, and time. However, a good weld can only be made within a certain range of parameter combinations. Below the lower limit, no weld can be made. Above the upper limit, there will be expulsions. This … Continue reading

Optimization in Engineering

With continuous advancement of technologies and inventions of smarter products, the engineering processes are also getting more complex and sophisticated that need constant optimizations. As seeing in automotive industry, the rapid transition to electric vehicles (EVs) in recent years has driven many technological developments with new challenges. Optimizations are essential through all engineering stages of … Continue reading

Welding Simulation & Digital Twins

The world is going digital. This is leading the way in changing every aspect of our life, from digital documentations and communications, to online banking and shopping, then digitized libraries and museums. The same is happening to the industry, first by digital methods for designing with CAD, and now by Digital Twins for manufacturing processes … Continue reading

Tech Topics

In this section you find technical articles all related to welding and joining. The author is our CEO, Dr. Wenqi Zhang. Each article presents a commonly interested tech topic relevant to the industrial applications of welding and joining processes. We continue publishing more articles regularly, on the one hand to share our knowledge of welding … Continue reading
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Wenqi Zhang, PhD, CEO

Wenqi is a researcher turned entrepreneur with a passion for engineering and an enthusiasm for new technologies. Through many years research and studies, he has built an in-depth understanding of material behaviors and process dynamics in metal forming, resistance welding, mechanical joining and solid state bonding, as well as comprehensive knowledge of numerical modeling methods.