Polishing stainless steel muffler end caps
We need to find the best possible solution to polish our t-304 stainless steel muffler end caps to a mirror like finish. We need to remove minor scratches and minor forming marks. The component is elliptical with edges formed at 90 degrees. At present we are using a buffing process but have been told to perhaps look at vibratory or rumbling process.Mark
manufacturer of after market motorcycle mufflers - Wellington., nth island, New Zealand.
Yes, a mirror finish can be achieved with mass finishing equipment; however, it may only be 95% or a hand buff finish. Then again that maybe acceptable considering the labor cost savings. Can't tell you much more until I know the volume of parts to be processed and in what time frame. Meaning there are options and cost of equipment and supplies involved.
Thank you for your response A.F, the volume would be approx. 50-120 units per week at present, the size of the part is 130 mm X 100 mm X 18 mm high. The time taken is not an issue as the most important factor is to have a consistent finish. We have a tumbler but we have to find the best possible solution.Mark
manufacturer - Wellington
Based upon the size of the part and volume, I think this can be done in our 1 cu.'ft.'. vibratory machine system. Maybe 10 pounds per batch. You may require a 2 step process. I forgot to ask you what the surface finish of the materials are before processing. If you need assistance, we can run some samples to develop the process and/or media.
I would go with AF's answer of working your components on a vibratory bowl. The required finish may be obtained 2-3 steps. The minor scratches and minor forming marks can be removed using some kind of abrasive media and then polishing can be done either using S.S. balls or plastic media. To further achieve higher finish it may be run in corncob or maize (dry natural media).Niranjan S. Kulkarni
Finishing Machines - Thane, Mah, India
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