Manufacturing Project Process Sheet Assignment

Manufacturing Project Process Sheet Assignmenta Process Sheet Will Be

Manufacturing project process sheet assignment A process sheet will be done for the machining of each of the two parts for the ice scraper. This is an individual assignment not a group effort. The process sheet will include the following; the feature that is to be machined, the machine that will be used, the tooling used, and the sequence of operations for each part. A process sheet will include the feature being machined, the machine to be used, the tooling needed, and these items will be in a sequence of operations (such as turning, milling, drilling, tapping, etc...) that makes sense for the part being machined. Your starting material will be a piece of polycarbonate roughly 4 1/8" x 5" x 3/8", and a piece of uhmw PVC 1.5" diameter by 6" long. Looking at the drawing or part files determine what feature needs to be made (sequence of operations), what machine it should be run on, and what tooling will be used. This should be done in a table format for each part. The sequence of operations should include the order in which the part will be cut, whether the part needs to be repositioned in the same machine or placed in a different machine for the next operation. As an example of format, for machining a 1-inch diameter cylinder 8 inches long: Operation | What feature is to be made | Machine tool(s) 1 | turn OD and face one end for half the length | lathe | V type tool with 3-degree lead 2 | turn OD and finish other end to length | lathe | see above

Paper For Above instruction

The process of developing an effective manufacturing process sheet for the ice scraper parts involves understanding the features that need to be machined, selecting appropriate machines, tooling, and defining the sequence of operations. For the first part, which is likely the handle or blade component, the main feature involves shaping and finishing the polycarbonate material to precise dimensions. The initial step typically includes turning operations on a lathe to create the cylindrical shapes or features required, followed by milling to create slots or holes as specified in the design.

The starting material for this part is a polycarbonate block measuring approximately 4 1/8 inches by 5 inches by 3/8 inch. The process begins with setting up the polycarbonate blank in a lathe to perform a turning operation. This involves using a V-type cutting tool with a 3-degree lead to shape the external diameter and face one end to the desired length, ensuring concentricity and smooth surface finish. Following the turning process, the part may need to be repositioned or transferred to a milling machine to create features such as slots, holes, or cutouts, which are crucial for the assembly or functionality of the ice scraper.

For the milling operations, a standard vertical milling machine equipped with appropriate end mills and slot cutters will be used. Precision tools such as drilling bits or tapping tools may also be employed to create threaded holes or other detailed features. The sequence should be logical and minimize repositioning; for example, drilling holes in the same setup as milling slots to enhance accuracy and efficiency. After machining, the part should be inspected for dimensional accuracy, surface finish, and feature completeness.

The second component, made from uhmw PVC, measures 1.5 inches in diameter and 6 inches long. This part could serve as an extension or a structural component of the ice scraper. The manufacturing process begins by securing the cylindrical PVC rod in a lathe for turning to smooth the surface and cut to length if necessary. Subsequently, additional machining, such as drilling or slotting, may be performed based on design specifications.

Both parts require careful planning in their process sheets to ensure proper sequencing, machine selection, tooling, and efficient workflow. The process sheet should explicitly note each operation, machine type, tooling used, and sequence order, including steps involving repositioning the workpiece. Such detailed documentation ensures clarity, repeatability, and quality control throughout manufacturing.

References

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