A bench grinder or pedestal grinder is a machine used to drive an abrasive wheel (or wheels). A grinding wheel is an expendable wheel that is composed of an Abrasive compound
Depending on the grade of the grinding wheel it may be used for sharpening cutting tools such as lathe tools or drill bits. A lathe (ˈleɪð is a Machine tool which spins a block of material to perform various operations such as Cutting, Sanding, Knurling For the ficitonal character see Drill Bit (Transformers. Drill bits are cutting tools used to create cylindrical holes Alternatively it may be used to roughly shape metal prior to welding or fitting. Welding is a fabrication process that joins materials usually Metals or Thermoplastics by causing coalescence.
Wire brush or buffing wheels are often mounted in place of the grinding wheels and are used to clean or polish work-pieces. A wire brush is a tool consisting of a Handle, usually wood or plastic occasionally bone and a Brush.
Contrast this with the Angle grinder and Grinding machine. An angle grinder is a handheld Power tool used for cutting grinding and Polishing. A grinding machine is a Machine tool used for producing very fine finishes or making very light cuts using an abrasive wheel as the cutting device
Safety issues
Goggles or safety glasses need to be worn to protect the operator's eyes from the sparks and metal filings that result. Goggles or safety glasses are forms of protective eyewear that usually enclose or protect the eye area in order to prevent particulates water or chemicals from Glasses, also called eyeglasses or spectacles, are frames bearing lenses worn in front of the Eyes normally for vision correction, Depending on the workpiece and time of exposure, hearing protection may also be required, the dust produced is also potentially hazardous.
The toolrest (or workrest) should be mounted slightly below the center of the grinding wheel with less than 3 mm clearance from the wheel. This prevents the work from jamming between the toolrest and the wheel.
Grinding wheels designed for steel should not be used for grinding softer metals, like aluminium. The soft metal gets lodged in the pores of the wheel and expand with the heat of grinding. This can dislodge pieces of the grinding wheel.
Wire brushes require particular attention for the safety of the operator and bystanders as the metal wires may become dangerous projectiles as they could bind with the object being brushed and so throw it away with great energy. A projectile is any object propelled through space by the exertion of a force which ceases after launch
The machine needs to be securely mounted to a pillar or a bench to be used safely and effectively, often with an emergency stop switch or pedal fitted close by the machine, for use in emergencies.
Links
Dapyx Software network: MP3 Explorer | Ebook Manager | Zenithic