Industrial laser cutting: plate parts from drawing to finished time

A laser-cut disc part will not be completed when the cutting head has been around the contour. The question is whether the piece can be used for the following work: whether the holes fit, whether the material is suitable, whether the living is manageable, and whether it is clear which part belongs. That's why it's worth thinking about backwards from the finished piece.

It starts at the drawing, but it's decided at the use

You're a drawing DXF good starting point, but you don't always tell me what the component is used for. Otherwise, a plate, a piece to bend and an element whose holes are later attached to other parts shall be prepared. In addition to the size and number of sizes, the description, thickness, the role of holes, the important matching edges and the following operation should therefore be clarified in the first consultation. If a size or requirement is missing, it is better to ask before cutting than to speculate on the finished disk.

The digital contour must also be checked. An inoperative line, an unnecessary double section or too small a geographical detail may cause problems in the preparation of the program. It is not the extension of the file that guarantees production, but the fact that the drawing, the material and the desired finished state describe the same task. If the component continues to bend, the cut geometry is already preparing it.

Material, thickness and number: not administrative

The material is not just a line in the offer. The cutting process and the quality of the edge depend on the material and the thickness of the plate; the desired surface, subsequent bending or welding is also considered. The number of pieces determines how to place the items on the board and identify them after the cut. For a single test piece, the emphasis on control is different than that of the same element. Specific accuracy, post-work or deadline shall be undertaken only on the basis of the agreed drawing and task.

The layout of the plate is also a production decision

"Nesting 'is the installation of components on disk board. It's not just about getting more shapes together. Care shall be taken to ensure that the pieces are securely removed after cutting, between the edges and pieces, in the direction of the material, in the cut. In the programme, the working order of approach points and contours is a decision. The overcrowded arrangement may seem to save material, but if the piece is damaged or difficult to identify, the savings are lost.

What does your own workshop photo show - and what doesn't?

The main picture of this article shows a laser cutting head and the openings that have already been cut from the plate at Alabama's own workshop. During cutting, the focused beam works along the designated contour; the cutting gas helps to remove the molten material from the gap. The spark shown in the photograph is a work epithet, not proof of a specific tolerance or that each piece is free of line. The result of the edge depends on the material, thickness and the adjusted process. The finished element is therefore qualified by a check according to the requirements, not by the sight of the machine.

The cut can still get a post-work

After exception, it shall be checked whether the contour has been completed, whether the edges and edges are in line with the agreed task, whether there is no line or deposition that prevents the next operation. If necessary, there may be a downplay or other cutting; this should not be called automatically unnecessary or mandatory in all cases. When bending, the fit edge and the position of the holes, the condition of the connecting surfaces is particularly important. The method of measurement and its acceptance criteria shall be adapted to the drawing and use.

In the case of transfer, the identification is also quality

The last step is not just to wrap the pieces. It is necessary to know which element belongs to which drawing or assembly, how much of it has been made and whether it is to be bent, welded, surface-treated or on-site assembly. The identification and transfer order will help in particular when more similar parts are made from a plate. Thus, laser cutting is not a separate spectacular machine operation, but the beginning of a perfectly traceable plate working chain.

Professional background: Autodesk: installation of parts on disk board, Autodesk: incomplete DXFcontours, AMADA: preparation of laser cutting programme, TRUMPF: process of laser cutting. The article presents general practical aspects, not a technical data sheet for a specific Alabama order.

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