Jobs
Deburring
There are many deburring processes, but the most common are mass-finishing, spindle finishing, media blasting, sanding, grinding, wire brushing, abrasive flow machining, electrochemical deburring, electropolishing, thermal energy method, machining, water jet deburring, and manual deburring.[5]
Manual
Manual deburring is the most common deburring process because it is the most flexible process. It also only requires low cost tools and allows for instant inspection.[6] Manual deburring is either done with tools like scrapers, files, sandpaper, stones and reamers or with handheld power tools that use abrasive points, sandpaper, or cutters similar to those used to deburr during machining.
Electrochemical
Electrochemical deburring is the use of electrochemical machining to deburr precision work pieces and edges that are hard-to-reach, such as intersecting holes. The process uses a salt or glycol solution and electricity to dissolve the burr. The electric current is applied with a specialized tool to reach the burr location. Burrs are removed in 5 to 10 seconds, while the rest of the work piece is unaffected.[6]
Thermal
Thermal energy method (TEM), also known as thermal deburring, is a deburring process used to remove hard-to-reach burrs or burrs from multiple surfaces at the same time. The process uses an explosive gas mixture to provide thermal energy to burn off the burrs. It is the fastest burr removal process, requiring only 20 milliseconds to remove a burr.[7]
The process starts by loading the workpiece into an explosion-proof chamber, which is then sealed and clamped with approximately 220 metric tons (240 short tons). The chamber is then evacuated of air and filled with an oxygen and fuel mix; this mixture is pressurized to 0.5 to 1.9 MPa (73 to 276 psi). An electrical igniter then ignites the mixture, which burns for approximately 20 milliseconds, causing all of the sharp corners and burrs to burn away. The peak temperature reaches 3,000 °C (5,430 °F).[7]
Hucknall (/ˈhʌknɔːl/), formerly Hucknall Torkard (/ˈtɔːrkərd/), is a market town in the Ashfield district of Nottinghamshire, England. It lies 7 miles (11 km) north of Nottingham, 7 miles (11 km) southeast of Kirkby-in-Ashfield, 9 miles (14 km) from Mansfield and 10 miles (16 km)south of Sutton-in-Ashfield. It is the second-largest town in the Ashfield district after Sutton-in-Ashfield.
Hucknall is on the west bank of the Leen Valley, on land which rises from the Trent Valley in the south and extends northwards to Kirkby-in-Ashfield. The Whyburn or Town Brook flows through the town centre. Farleys Brook marks its southern boundary. Due to the mass amount of housing and industrial estates along the southside of the town. Hucknall is contiguous with the wider City of Nottingham with the suburbs of Bulwell and Bestwood Village both to the south and southeast.
Hucknall town centre
The town's highest point is Long Hill, at 460 ft (140 m) above sea level, with views over the city and Trent Valley, which descends to 22–24 metres (72–79 ft) AOD, flowing just beyond most of the city centre.[2]
The town is surrounded by farmland or parkland. To the north-west lie Misk Hills and Annesley. To the north-east of the town are the villages of Linby and Papplewick, and beyond these two, Newstead Abbey and its grounds, once the residence of Lord Byron. To the west lies Eastwood, birthplace of D. H. Lawrence and an inspiration for many of his novels and short stories. To the east of the town is Bestwood Country Park.
The contiguous settlements of Butler's Hill and Westville often appear as distinct entities on maps, but are generally seen as parts of Hucknall. They belong to its historic and present-day Church of England parish, although the town itself has no civil parish council. The identity is reinforced by being part of the post town and by being shared wards of Hucknall.
