Hard, large, suitable, convenient, backward, long Supply antonyms for: the following words: The correct cutting angle вЂ¦ a chisel depends вЂ¦ the strength вЂ¦a stock to be chipped. ChisВels are usually made вЂ¦ a high grade steel. Chisels are used вЂ¦ removing stock вЂ¦ works. Fill in the blanks with prepositions by, from, in, of, on:ДЎ. What is the clearance angle, the lip angle and the cutting angle? What plane is called the 'front cutting face? 9. Why is the top face of a chisel given a certain slope? 7. What does the angle of the cutting edge of a chisel depend on? 6. What does the work of a chisel depend on? 5. What is a chisel? What types of chisels do you know? 4. What instruments are used in chipping? 3. Retell the text giving answers to the following questions:ДЎ. To chip, chisel, stock, mechanical tolls, blade, wedge, edge, cutting angle, acute angle, plane, lip angle, clearance angle, cape chisel, front rake, to strike, to forge, solid Use the following words and phrases In sentences of your own: Hammers are made of a solid piece of forged tool carbon, steel, their weight depending on the stock to be removed. Hammers are striking tools used in chipping, bending and other operations. There are different types of chisels such as flat chisels, cape chisels, etc. The angle AOC formed by the lip angle and clearance angle is known as the 'cutting anВgle'. The slope in the direction of the chisel length in which the chip moves is called the 'front rake' or 'true rake'. The angle BOC is the clearance angle which is formed by the back cutting face of the chisel and the surface of the work to be treated. Being formed between the front and back cutting faces of the chisel the angle AOB is known as the lip angle. The plane РђРћ called the 'front cutting face' or the 'top face' is given a backward and sidewise slope for sliding the chips off the tool in a convenient direcВtion while the plane OB is called the 'back cutting face'. 3 shows the process of chipВping by means of a chisel, as well as the cutting angles. 2 shows a schemeof the process of cutting into metal,and the angles of the wedge.ДЇig. An angle of about 70В° is suitable for most work. Process of Chipping by Means of a Chisel:ДЎ - front cutting face 2 - front rake 3 - cutting angle 4 - back cutting face 5 - clearance angle 6 - lip anВgleДЄngle of the chisel and vice versa. The harder the metal, the larger should be the cuttingДЇig. The cutting edge of the chisel should be sharpened to an acute angle so as to provide for the best cutting ability, depending on the stock to be chipped. The work of the wedge depends mainly on its cutting angle. Under the effect of an external force applied to the wedge it cuts into the metal. A chisel is a tool made of very hard steel, having a cutting edge at one end of the blade. There are different tools used in metal-working shops for chipping stocks such as chisels. The workpiece to be tooled is fixed during the cutting process in the bench vice.

ChipВping of large parts is always done on an anvil but very ofВten it is done in a bench vice. Chipping is used in cases when it is necessary to cut off a piece of metal from sheet metal. This process is used when a large piece of metal has to be removed from a workpiece this process is very labour-consuming 1 and is applied only in cases when the workpiece cannot be machined. Chipping is a process of removing metal from a workpiece by means of a cutting instrument such as a chisel and a hamВmer.

Arm and hammer anvil serial numbers