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Vibratory Tumbling Media
Vibratory Tumbling Media
2.3.1 Consider the material of your parts:
Different types of media are suitable for different materials. For example, ceramic media with brown aluminum oxide abrasive is commonly used for the general deburring of hard metal materials, while plastic media is often used for aluminum and zinc die-casting parts.
2.3.2 Determine the desired finish:
Different types and shapes of media can produce different finishes. For example, ball-shaped media can produce a smoother finish, while pyramid-shaped media can be more aggressive in cutting and producing a matte finish.
different media shapes
2.3.3 Choose the appropriate size of media:
The size of the media should be smaller than the parts to ensure efficient tumbling and prevent parts from getting lodged. If the parts are much smaller than the media, you may need to consider using a reverse separation process.
2.3.4 Consider the shape of the media:
The shape of the media should be chosen based on the shape and complexity of the parts being tumbled. Choose media with shapes that are less likely to lodge in or damage your parts.
2.3.5 Determine the media-to-parts ratio:
The amount of media in the tumbler is critical to achieving a successful tumbling process. Generally, a 3:1 media-to-parts ratio is recommended for most tumbling applications. However, delicate parts may require a higher media-to-parts ratio to prevent parts-on-parts impingement.
2.3.6 Test and adjust:
It's important to test and adjust the tumbling process to ensure the desired finish is achieved. Make adjustments to the type, size, shape, and amount of media until the desired finish is achieved.
2.4 Compound and Water
Choosing the right compound for your vibratory finishing process is a critical step in achieving the desired finishing result. Consider the material being finished, the desired finishing result, and any environmental and safety factors when choosing a compound, and be sure to follow the manufacturer's instructions when diluting the compound.
Tinwell is a village and civil parish in the county of Rutland in the East Midlands of England. The population at the 2001 census was 209, increasing to 234 at the 2011 census.[3]
Village
The village's name origin is dubious. Possibly, 'spring/stream of the people of Tyni'. Alternatively, 'spring/stream of Tida' or 'spring/stream with goats'.[4]
The village is just west of the A1 and within walking distance of the town of Stamford in Lincolnshire. The village has a well-used village hall, which provides a venue for parties and community events as well as regular special interest classes. Next door to the village hall is a football pitch which as well as providing a sports area is the venue for village parties. A recent major event on the field was the Queen's Diamond Jubilee in 2012 where hundreds of villagers and friends turned out for a sports day, barbeque and concert and the lighting of the jubilee beacon made at Tinwell Forge. Also nearby on Crown Lane is the village pub "The Crown" which is currently closed but has plans for refurbishment.
All Saints' Church, Tinwell has a distinctive tower with an unusual saddleback roof; these are rare in England and was added in about 1350.[5]
In 2023, members of the church congregation returned a crucifix to the village of Doingt in northern France. The vicar in the 1930s, Percy Hooson, in the First World War had picked up the cross from the ruins of the church at Doingt following the Battle of the Somme. A local 16-year-old, on discovering its history, suggested it should be returned to Doingt which had been rebuilt.[6]
Opposite the church is The Old Rectory, birthplace of Thomas Laxton (1830-1893) who conducted plant-breeding research for Charles Darwin and developed the Laxton Superb and Laxton Fortune apples and the Royal Sovereign strawberry.[7]
Other buildings of interest are Tinwell Forge and Bakery which are located on Main Street and were built in 1848. At the front of the forge is a stone surround to the village spring, which was built for the Golden Jubilee of Queen Victoria; there is also a Victorian post box. The bakery closed in 1948 but the forge continues to be in operation. By the riverside is Tinwell Mill, although it is now a private house a mill stood at the same site during the Domesday period.
Walks can be taken from Tinwell south towards Easton on the Hill, with its Norman church and the Priest's House; west around the limestone quarry and along the rivers Chater and Welland towards Ketton, Aldgate and Geeston; and east following the Jurassic Way towards Stamford, and the Macmillan and Hereward Ways to Wothorpe and Burghley House. There is a footpath map showing these routes in the churchyard.
