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John Prevish from United Precision Services will be presenting at Fabtech 2025! Please come see him as he discusses Microstep dome cutting machines on Tuesday, September 9th at 10:30 a.m. Session F047. United Precision Services is also exhibiting at Fabtech and can be visited at Booth A3493.
Cutting Hole Penetrations into Vessel Heads Creates Challenges in 3-D
Production of pressure vessels and boilers are major industrial applications where cutting 3D objects is an essential part of the process. Dome cutting involves creating openings in the dish ends of the vessel to allow for welding of inlet pipes or trimming of the edges for weld preparation to the vessel. Today, this mostly manual process of measuring the dish ends for hole locations and then hand plasma cutting is not only time consuming and costly, but also results in less desirable accuracy and weld preparation edge quality. Welding to the vessel body using V, X, or K-cuts with constant or variable bevels need to be produced with prescribed accuracy to meet welding requirements. Automation of this entire process can now be realized on a gantry style cutting machine utilizing new technologies that can scan (cloud-map) the dish ends and auto-calibrate the plasma torch to produce consistent and accurate results.
John Prevish – United Precision Services
John Prevish is National Sales Manager at United Precision in Cincinnati, Ohio. He has over 25-years of engineering and manufacturing experience in executive level and sales management positions. He Earned a Bachelor of Science degree in Mechanical Engineering Technology from the University of Dayton (Dayton, OH) and MBA from St. John Fisher University (Rochester, NY).
