This vibratory finishing video is a visual reference for comparing a vibratory process with other finishing directions. Start with the workpiece, the incoming defect and the accepted result before choosing media or cycle conditions.
What to review while watching
- whether the part geometry can circulate without nesting or damaging critical faces
- which media size, shape and access questions need a trial
- how loading, separation and cleaning fit the downstream process
- how the result will be judged using visual, dimensional or cleanliness requirements
Prepare a useful inquiry
Send the material, dimensions, approximate weight, quantity, current surface condition, target appearance and protected features. Add clear photographs and a drawing when available. If a trial is appropriate, agree the representative parts and inspection method before shipment.
Evidence boundary
The demonstration does not establish a universal finish, cycle time, capacity or compatibility with a particular alloy. Those points require representative parts and a documented test method.
Discuss your workpiece
| Requirement | What decides it | Direction to test |
|---|---|---|
| Reaching an internal feature | Whether media can physically enter | Media sized below the smallest opening |
| Preserving an edge | How much material the part may lose | Short cycle with the edge checked on a sample |
| Uniform result across a batch | Load pattern and media condition | Reduce the load and improve distribution |
| Fast cycle | Media grade and process energy | Coarser media shortens the cycle but changes the finish |
| A specific surface finish | The finest stage in the sequence | Stage grades progressively rather than in one step |
| Repeatability | Whether parameters are recorded | Record media, compound, cycle and load |
Directions to test on a representative sample, not validated results for a specific component.
What decides the result in a vibratory machine
Three things decide what a vibratory machine actually does to a part: the media, the load, and the cycle. The machine sets the energy available, but it does not choose how that energy is applied. A machine running with the wrong media will produce the wrong surface at any cycle length.
Media decides which surfaces are contacted and how much material is removed. Size comes from the smallest feature that has to be reached — a hole, a slot, a recess — because media that cannot enter the feature cannot work it. Grade comes from the surface the part is allowed to lose, and from the finish the next stage has to build on.
The load decides whether the parts are worked or shielded. In a correctly loaded chamber, media moves between the parts and every part sees similar contact. In an overloaded chamber, parts press against each other, the media stops circulating freely, and the parts in the middle of the mass are under-worked while the ones at the edges are over-worked. Reducing the load is often the single change that improves batch uniformity most.
Cycle time sets how far the process goes, not how well it works. If a burr is still present after a longer cycle, the problem is usually that the media cannot reach it, not that the time was too short.
Establishing a process on a sample
A vibratory process is established on representative parts, not on a single ideal part. The sequence that works is: confirm the starting condition, choose media from the geometry, set a load that lets the charge move, set the compound and water flow, run a short cycle, and inspect the features that matter — edges, threads, recesses and any surface that has to seal or mate.
What is learned on the sample should be written down: media type and size, compound, cycle time, load, and what was observed on the tested parts. A process that is recorded can be repeated and corrected. A process that is remembered changes with whoever is running the machine.
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