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]
North Wales (Welsh: Gogledd Cymru), also known as the North of Wales (or simply the North, or in Welsh 'y Gogledd' in Wales), is a geographic region of Wales, encompassing its northernmost areas. It borders Mid Wales (or South Wales under some definitions) to the south, England to the east, and the Irish Sea to the north and west. The area is highly mountainous and rural, with Snowdonia National Park (Parc Cenedlaethol Eryri) and the Clwydian Range, known for its mountains, waterfalls and trails, located wholly within the region. Its population is more concentrated in the north-east, and northern coastal areas of the region, whilst significant Welsh-speaking populations are situated in its western and rural areas. North Wales is imprecisely defined, lacking any exact definition or administrative structure. For the public purposes of health, policing and emergency services, and for statistical,[1] economic[2][3] and cultural[note 2][4] purposes, North Wales is commonly defined administratively as its six most northern principal areas, but other definitions of the geographic region exist, with Montgomeryshire historically considered to be part of the region.
Those from North Wales are sometimes referred to as "Gogs" (from "Gogledd" – the Welsh word for "north");[5] in comparison, those from South Wales are sometimes called "Hwntws" by those from North Wales.
The region includes the localities of Wrexham, Deeside, Rhyl, Colwyn Bay, Flint, Bangor, Llandudno, and Holyhead. The largest localities in North Wales are the town of Wrexham and the conurbations of Deeside and Rhyl/Prestatyn, where the main retail, cultural, educational, tourism, and transport infrastructure and services of North Wales are located.
