Jobs
Deburr
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]
The East Midlands is one of nine official regions of England at the first level of NUTS for statistical purposes. It consists of Derbyshire, Leicestershire, Lincolnshire (except North and North East Lincolnshire), Northamptonshire, Nottinghamshire and Rutland.
The region has an area of 15,627 km2 (6,034 sq mi), with a population over 4.5 million in 2011. The most populous settlements in the region are Derby, Leicester, Lincoln, Mansfield, Northampton and Nottingham. Other notable settlements include Boston, Chesterfield, Corby, Grantham, Hinckley, Kettering, Loughborough, Newark-on-Trent, Skegness, Wellingborough, and Worksop.
Relative proximity to London and its position on the national motorway and trunk road networks help the East Midlands to thrive as an economic hub. Nottingham and Leicester are each classified as a sufficiency-level world city by the Globalization and World Cities Research Network.[2]
The region is primarily served by East Midlands Airport, which lies between Derby, Loughborough and Nottingham.
