ESAB exploits M3 plasma gas control capabilities in precision hole cutting technology

Precision hole technology is available on new ESAB plasma cutting machines equipped with an m3 plasma system and Columbus.Net nesting and cutting programming software. It is also built into the Vision T5 CNC controller. It gives users the ability to produce high quality plasma cut bolt-ready holes in mild steel up to 25 mm thick and holes down to 1:1 diameter to thickness ratio. ESAB precision hole technology integrates the plasma system, the CNC control, the programming software, height control and the cutting machine. All the parameters that affect hole quality are automated and controlled, including the lead-in and lead-out, height control, speed, acceleration, kerf offset and plasma gases. No special operator intervention is required. The technology takes advantage of the advanced gas control capabilities available in ESAB's m3 plasma systems. This is integrated with Columbus.Net nesting and cutting programming software and a process control database, built into the Vision T5 CNC control system, with additional data required for small hole cutting. The Vision T5 automatically optimises the cutting and nesting of small holes created with its optional EasyShape part program generator, or with imported DWG or DXF files. Automatic height control sets and maintains the optimum torch height during hole cutting. An encoder accurately measures the torch height as it retracts from the plate. The CNC controller uses this distance information to maintain the proper height while cutting a small hole without relying on arc voltage. This eliminates the effects of arc voltage delay and electrode wear that affect the shape of the hole. Precision hole technology is available on Combirex DX, Suprarex and Eagle machines and there is the possibility of retrofitting it to many existing ESAB plasma installations.