Very cool article as someone who has had little to no exposure on this topic. A very interesting youtube channel [1] I recently came across is Cutting Edge Eng

Very cool article as someone who has had little to no exposure on this topic. A very interesting youtube channel [1] I recently came across is Cutting Edge Engineering Australia - they do mostly heavy equipment repair/fab. Some common tools used are air-arc gougers for clean and rapid removal of material along with mill/lathe machining. Had never really considered the conceptual transfer over to something like tunnel boring (air powered debris and rotational removal) but it seems similar. [1] Repair & Upgrade DAMAGED Bucket for 30T Excavator | Gouging & Welding: https://www.youtube.com/watch?v=qzi7eOr-3lA https://www.youtube.com/watch?v=qzi7eOr-3lA