Electron Beam Welding Equipment; determination of cathode failure modes by measurement techniques

剑桥真空工程（CVE）和国家物理实验室（NPL）之间的合作，分析电子束焊机灯丝的失效机制，这将为CVE及其客户提供灯丝技术的知识，改进和信心，从而使现代制造业受益。灯丝寿命是CVE设备用户的一个重要因素。CVE电子束焊机广泛应用于汽车和传感器等大批量生产的工业部门，在这些行业中，任何停机时间更换灯丝都会产生巨大的成本。CVE焊机也用于小批量、高价值的行业，如航空航天和核能，在这些行业中，线材的可靠性至关重要，因为有问题的焊缝可能会产生高价值的废料。电子发射丝是电子束焊机的核心；通过对这一关键要素的深入了解，CVE旨在为制造商提供一种灯丝解决方案，使电子束焊接成为最先进、最强大的制造技术之一。

A collaboration between Cambridge Vacuum Engineering (CVE) and the National Physical Laboratory (NPL) to analyse failure mechanisms of electron beam welder filaments that will provide knowledge, improvements and confidence in filament technology, that CVE and their customers can use to benefit modern manufacturing.Filament life is an important factor for users of CVE equipment. CVE electron beam welders are widely used in high volume production industrial sectors such as automotive and sensors, where any down time for filament change incurs great cost. CVE welders are also used in low volume, high value sectors such as aerospace and nuclear where filament reliability is imperative as a questionable weld can create high value scrap. The electron emission filament is the heart of an electron beam welder; by advancing knowledge of this key element, CVE aims to provide a filament solution that manufacturers can utilise to preserve electron beam welding as one of the most advanced and powerful manufacturing technologies.