Tag Archives: MicroStep

Fabrication: Beyond Flat Plate

In any business, adding capabilities and services can have a measurable impact on the bottom line. And many fabricators have expanded their offerings to attract customers from new industry sectors. This could include adding painting, welding, laser cutting, beveling or bending to a company’s operations.

Living in a 3-D world, more fabricators are beginning to venture beyond flat plate cutting to diversify their offerings. But processing pressure vessels, boilers and similar 3-D objects generally presents some unique and significant challenges. As with any traditional job, cutting operations must be fast, simple to set up, and produce clean and accurate results that won’t require added manual cleanup. When it comes to 3-D objects, however, this is often easier said than done.

The dome cutting process typically includes creating openings in the dish end of the vessel to allow for the welding of inlet pipes or slicing or trimming of the edges and to prepare the end to be welded to the vessel body. Accuracy is critical as the cross-sections of the cut edges must meet the requirements of the subsequent welding process. Depending on the wall thickness, V, X or K cuts with constant or variable bevels must meet the prescribed accuracy. Failure to do so means poor quality, excessive scrap and lost contracts.

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Drilling and Milling Solutions Turn Cutting Machines into Multi-Functional Production Centers

Fabricators throughout North America have wider access to some of the industry’s most sought-after cutting equipment. Fabrication processes often require high-precision holes, threads, or countersinks. Whether its flanges, end plates, heat exchanger tube sheets or generally any stress-exposed bolted joints, there are many applications where it is technologically necessary to create the holes by drilling. While there are jobs – especially those with large quantities of holes in a single workpiece or assembly – where using a dedicated boring machine is most efficient, there are also many parts that require just a few holes and perhaps some threads.

Ideally, these parts would be manufactured with a single machining center including cut contours, markings, and machined holes. But, lacking this option, this work is usually done manually, or via a separate mechanized drilling process adding time and cost to the job.

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