Jobs
Burnishing
When it comes to achieving a high-quality, polished finish in vibratory finishing, the burnishing process is an important technique to consider. Typically, this process is done using steel balls, although zirconia balls can also be used in some cases. There are two primary types of steel media used in burnishing: ball-shaped and ball cone-shaped. While ball-shaped media offers superior polishing performance, ball cone-shaped media is ideal for hammering down burrs and leaving a dull edge. Regardless of the type of media used, it's critical to ensure that it is clean and free of dullness, as this can significantly impact the final finish. When selecting a burnishing compound, it's important to consider the material being finished. There are various compounds available for different materials such as stainless steel, aluminum, zinc, and copper. |
The ball burnishing process is usually carried out in a curved wall vibratory finishing machine or tub vibratory machine. In the curved wall design machine, the tumbling media rotates in a cross-sectional area, ensuring maximum surface contact between parts and media for optimal tumbling performance. Typically, the ball burnishing process takes around 20-30 minutes to achieve a brilliant, polished surface.
To ensure the best results in burnishing, it's crucial to select the right media, compound, and equipment for the job. With the right approach and attention to detail, vibratory finishing can deliver a perfect finish for a wide range of materials and applications.
Cornwall (/ˈkɔːrnwɔːl, -wəl/;[3] Cornish: Kernow [ˈkɛrnɔʊ]) is a ceremonial county and Historic County in South West England. It is recognised as one of the Celtic nations and is the homeland of the Cornish people. The county is bordered by the Atlantic Ocean to the north and west, Devon to the east, and the English Channel to the south. The largest settlement is Falmouth, and the county town is the city of Truro.
The county is rural, with an area of 1,375 square miles (3,562 km2) and population of 568,210. After Falmouth (23,061), the largest settlements are Newquay (20,342), St Austell (19,958), and Truro (18,766). For local government purposes most of Cornwall is a unitary authority area, with the Isles of Scilly having a unique local authority. The Cornish nationalist movement disputes the constitutional status of Cornwall and seeks greater autonomy within the United Kingdom.
Cornwall is the westernmost part of the South West Peninsula. Its coastline is characterised by steep cliffs and, to the south, several rias, including those at the mouths of the rivers Fal and Fowey. It includes the southernmost point on Great Britain, Lizard Point, and forms a large part of the Cornwall National Landscape. The national landscape also includes Bodmin Moor, an upland outcrop of the Cornubian batholith granite formation. The county contains many short rivers; the longest is the Tamar, which forms the border with Devon.
Cornwall had a minor Roman presence, and later formed part of the Brittonic kingdom of Dumnonia. From the 7th century, the Britons in the South West increasingly came into conflict with the expanding Anglo-Saxon kingdom of Wessex, eventually being pushed west of the Tamar; by the Norman Conquest Cornwall was administered as part of England, though it retained its own culture. The remainder of the Middle Ages and Early Modern Period were relatively settled, with Cornwall developing its tin mining industry and becoming a duchy in 1337. During the Industrial Revolution, the tin and copper mines were expanded and then declined, with china clay extraction becoming a major industry. Railways were built, leading to a growth of tourism in the 20th century. The Cornish language became extinct as a living community language at the end of the 18th century, but is now being revived.
