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]
Colwick (/ˈkɒlɪk/ KOL-ik) is a village and civil parish, in the Borough of Gedling of Nottinghamshire, England. It is situated to the east of Nottingham's city boundary, and forms the Colwick ward. At the time of the 2011 census, the village had a population of 2,829, falling to 2,778 at the 2021 census.
The village is recorded in the Domesday Book of 1086,[4] since when the De-Colwick,Musters and Byron families have all owned the village. The etymology of the place-name is from Old English wic "specialised industrial farm" with an uncertain first element, possibly col "coal",[citation needed] although there have never been coal mines in the area. Another derivation is from the area being a dairy farm.
In 1844 there was a gruesome murder at 'Saville's Spinney', then part of Colwick Park and later part of Colwick Woods. William Saville murdered his wife and three children in the woods on Tuesday 21 May. Their bodies were found one day later by John Swinscoe of Carlton who fetched the parish constable to the spot. An open razor was found in the left hand of the dead woman. The crowd for Saville's execution numbered in the tens of thousands and twelve died in a panic in the moments after Saville was executed.
