Author Archives: huangchuyu

CNC punching is a sheet metal fabrication process that uses CNC punch presses, turret punch presses, or punch-laser combination machines to create round holes, slots, notches, louvers, flanged holes, countersinks, and custom openings in metal sheets such as cold-rolled steel, galvanized steel, stainless steel, and aluminum. It is widely used for electrical enclosures, equipment panels, […]

Defining the Process Stainless steel laser cutting uses a high-energy-density beam to locally melt the material, with assist gas blowing away the dross to produce profiles, holes, slots, and complex geometries. In my experience discussing projects with clients, one point comes up repeatedly: the real measure of a shop’s capability isn’t spindle power or cutting […]

Sheet metal baking tray fabrication involves transforming flat metal sheets into finished baking trays through processes such as laser cutting, bending, welding, and surface finishing. For food-grade baking trays, product quality depends not only on machine precision, but also on material consistency, engineering design, and overall process control. Over the years, I’ve noticed that many […]

Metal deburring and polishing is the process of removing sharp edges, dross, burrs around holes, raised weld marks, and surface scratches after sheet metal parts have been laser cut, punched, bent, or welded. Although this step usually comes later in production, it has a direct impact on assembly safety, surface finishing quality, and the consistency […]

In OEM sheet metal projects, raised areas, bulges, and localized deformation can directly affect assembly accuracy, surface appearance, and batch-to-batch consistency. For overseas buyers, the key question is not simply whether a defect can be fixed. What really matters is whether the supplier can control risks early through material selection, structural review, process planning, and […]

Aluminum anodizing is often treated as a routine finishing step. In outsourced manufacturing, though, it affects far more than color and appearance. Alloy grade, pretreatment method, coating thickness, sealing condition, racking points, and inspection criteria can all shape how samples are judged and how stable production remains later on. When I review projects like this, […]

In sheet metal fabrication projects, surface treatment has a direct impact on corrosion resistance, coating adhesion, and consistency in batch production. When working with overseas buyers, we usually begin by confirming the service environment, the intended coating system, and the acceptance criteria before recommending the right pretreatment solution. Phosphating is a critical part of that […]

In our conversations with overseas buyers, manganese steel cutting is a topic that comes up quite often. At the early stage of a project, customers usually want to clarify a few key points first: Can manganese steel be laser cut? Will the cut edge quality be stable? Will the process affect welding, assembly, or end-use […]

In OEM projects, metal drawers may look like standard sheet metal parts, but once a project moves into prototyping, assembly, and mass production, the challenges are often more complex than they first appear. Buyers are not only concerned with whether a part can be bent into shape. They also care about dimensional stability, smooth assembly, […]

In our experience with bent metal cabinet door projects, cost differences are rarely driven by a single factor. Even when products appear similar in shape, differences in the application environment, material system, sheet specifications, bend design, tolerance requirements, surface finishing, or assembly scope can change the manufacturing requirements. These differences, in turn, affect cost, production […]