Frost Vibratory Tumbler: Difference between revisions
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Wear nitrile gloves when you are working in and around the tumbler. The slurry that is produced is messy and may stain your skin for a while because it contains very fine abrasive media. You will need to thoroughly clean your parts after tumbling, especially if they are going on for further processing like anodising or plating. | Wear nitrile gloves when you are working in and around the tumbler. The slurry that is produced is messy and may stain your skin for a while because it contains very fine abrasive media. You will need to thoroughly clean your parts after tumbling, especially if they are going on for further processing like anodising or plating. | ||
Deburring and corner rounding | === Deburring and corner rounding === | ||
You may find your parts come out with softer edges than when they went in - this is an expected part of the tumbling process. You can try to experiment with different media types and different durations. | You may find your parts come out with softer edges than when they went in - this is an expected part of the tumbling process. You can try to experiment with different media types and different durations. | ||
Revision as of 16:22, 13 February 2024
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A vibratory tumbler uses specialist abrasive media to automatically deburr and soften the edges of machined components. There are a number of different types of media kept in stock.
Usage Information
Make sure there is fluid in the container
The tumbler works best with a small amount of tumbling fluid in the container - it doesn't need a lot, too much will stop it from working effectively - but it's important because it prevents hazardous dust from becoming airborne. The tumbling fluid is pre-mixed and is stored in the Morson Engine Room COSHH cabinet.
Over time the material can appear to dry out, this is usually because the fluid has settled to the bottom of the container. Add a small amount of fluid and let the tumbler run for a few minutes without your part in.
Timing
Don't expect your parts to be done in less than an hour. Tumbling takes a long time, especially if you are working with hard materials like steel. Always test the process fully before comitting to a batch, or come and check on your parts regularly.
For fully deburring hard steel parts expect to leave them tumbling for 6-8 hours.
Tumbling is messy
Wear nitrile gloves when you are working in and around the tumbler. The slurry that is produced is messy and may stain your skin for a while because it contains very fine abrasive media. You will need to thoroughly clean your parts after tumbling, especially if they are going on for further processing like anodising or plating.
Deburring and corner rounding
You may find your parts come out with softer edges than when they went in - this is an expected part of the tumbling process. You can try to experiment with different media types and different durations.
Tumbler Media
We store tumbler media in a number of plastic bins under the tumbler bench. If you change the tumbler media the tumbler tub must be cleaned thoroughly before introducing the new media.
C115 - Pre-polish Plastic Cones
Aggressive, but suitable for aluminium and brass. Leaves a faily even, bright surface suitable for polishing media.
C116 - Ceramic Triangles
Ceramic media is best suited for deburring steel and iron parts. Fine threads and delicate features may be peened over or damaged by ceramic media and it will remove rust. Gives a dull finish.
C125 - Grey Rust Cutting Media
Excellent at removing rust, paint, and plated coatings.