It is used for generating sharp radii also. Hollowing hammer (Fig.) is used for hollowing sheet metal part.
(c) Creasing hammer.Ĭreasing hammer (Fig.) is used to close down joint edges of sheets metal part. Stretching hammer (Fig.) is used for stretching sheet. Smoothing hammer (Fig.) is used for leveling and smoothing a sheet metal joint. The uses of different kind of hammers are given as under: (a) Smoothing hammer. HAMMERSįig shows the various types of hammers used in sheet metal work for forming shapes. It is used for cutting circular or irregular curved shapes ranging from 20 to 35 cm. It may be of right hand or left hand type, easily identifiable, as the top blade is either on the right of on the left. Its blades are designed for universal cutting straight line or internal and external cutting of contours. It is used for general purpose cutting, making straight cuts and trimming away extra metal. Different types of hand shears are: (1) Straight hand shear:
They are required to size and shape the sheets. They resemble with pair of scissors and are used like them to cut thin soft metal sheets of 20 gauge or thinner. HAND SHEARS OR SNIPSįig shows the types of hand shears or snips. Some of the important sheet metal tools are described as under. (vi) Miscellaneous hand tools such as chisels, groovers, seamers, rivet sets and hand punches. The following tools are commonly used for sheet-metal work:
0 kommentar(er)
