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Vibratory finishing

Vibratory finishing is a process used in many industries. It is commonly used in aerospace, automotive, orthopedic implants, firearms, medical and the oil industry.


The vibratory finishing process is the movement of a mass of parts combined with media, water, and compounds within a machine. This process has several benefits. It can be used with both heavy and light parts, as well as fragile parts. It is cost efficient and significantly reduces manual labour. This finish produces consistent finishes from lot to lot. As well, it reduces surface imperfections thus improving the overall cosmetic look. It is also amazingly effective in abrading inside deep cavities or hollow parts.


Compounds are used to assist in cleaning and burnishing. Water is the medium which binds them all together and assists in cleaning. Too much water can significantly reduce the effects of the media. Media varies by type, size, and shape. All three are especially important when determining the process. Larger media can give a rapid cut, but if the media is too large, it can damage the part, or not get into the tighter areas. Media that is too small can become lodged in the part or break off and leave debris in the part. If the media used and the part being processed are too close to the same size, separating the two will become an issue. Media shapes help with getting into corners and cavities. There are cone shaped media, ball shaped, pyramid shaped, triangle shaped, cylindrical as well as others. The media type is usually found by trial and error, even with experience.

Media can be made from plastic, steel, ceramic or organic materials. Plastic media performs well when cleaning softer metals like brass, zinc, and aluminum. Plastic is also commonly used on die-casted parts. Steel is a widely seen media. It has a long lifespan and can be used on steel, aluminum, brass, etc. However, special equipment may be required due to the weight of the steel media. Ceramic media is the most common. It works well polishing and grinding, and can be used on softer metals, hard metals, plastic, and stainless steel. Organic media, such as walnut shells is commonly used in the jewelry business as well as on soft alloys. Organic media such as corn cob can be used to clean or dry parts.

Let Latem Industries Limited’s 40+ years of experience assist you with your vibratory finishing.


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