Design draft

International Electrotechnical Commission (IEC), IEC-SC65A. Safety System Design. Draft Standard, IEC, 1994. 

The last function of the CAD system is automated drafting. The automated drafting function includes 2D and 3D product design drafting, converting a 3D entity model into a 2D representation. 

Part modeling is the historical area of computer aided design, drafting, and manufacturing. Traditionally, part models were constructed individually and each part model was stored in a separate file. Now, five different aspects integrate part modeling in a comprehensive product modeling environment. They are ... 

Draft indication. With the exception of extrusion, machining, and pul-trusion, all of the plastics processes require draft. It is critical that the part be drawn with draft in order to determine what the draft will do to the design. Draft can cause wall thicknesses to double or to disappear altogether. Failure to draw the part with draft can lead to fitments which do not fit and molds which cannot be repaired. Draft is usually specified as +x°/side (or x°/side) and placed on the dimension taken from that point (1.000 + 1°/S). Thus, the designation + VIS indicates that a 1° draft is intended to increase from the point of the dimension so indicated. Conversely, the designation - VIS would indicate that the draft decreases from the point dimensioned by VIS. 

The course work consists of three stages first a (experimental) research question needs to be formulated and a design drafted for the test setup, using available parts and instrumentation. The focus is on proper scaling, instrumentation and when required actuation of the problem, e.g. anchor impact tests, simulating... 

Centre Europ>6ene de Normalisation, Safety of Machinery — Basic concepts - General principles for design. Draft Standard. CEN/TC114 N93E, Brussels (1989)... 

Concepts for the mold, which are generally already executed in 3D, must be discussed prior to offer submission. Possible changes, especially changes in the component design, which influence the function of the mold, have to be discussed with the customer and integrated in the design draft (Figure 2.9). 

In contrast to the draft offer, which is often designed in 2D or as sketches, the actual design draft, which will also be detailed later, is executed in 3D. Essentially, the above-mentioned positions are defined by their dimensions. This means that the separation is fixed, the gate system is dimensionally integrated, and the size and shape of the slider are specified. In addition, the cooling is fundamentally determined. 

For the calculation, the cooling system in addition to the imported molded part is shown in the simulation. The calculation results can show temperatures of the molded part as well as local cooling times (Figure 2.28). It should be noted that the cooling channels from the design drafts cannot yet be imported easily, but in most cases still need to be redesigned. 

Concept, design draft, device production/installation... 

Customer s requirements for the product Design draft of a potential final product. 

Customer s requirements for the product Design draft of a potential final product Settir the strategy for s) matic rendition of the design... 

Collaborates with the quahty control organization on setting up of appropriate quahty control procedures and on maintenance of quality assurance of corrosion-control precautions during design, drafting, production, and trial activities. 

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