Title-Broaching MachineGroup Members1) 2) 3) 4) Shraddha Jadhav Pradnya Yadav Pravin Kshirsagar Vishwajeet Pawar •Material is removed by pushing or pulling action of tool. •Cutting tool used in this process is known as “BROACH”. . •Broach is a tapered tool on which teeth are cut. clutch plates etc can be machined by broaching. •Key ways. splines.•Broaching is one of the type of machining process in which material from the work piece is removed in the form of layers of desired width and depth. .Principle of working: •Work piece is fixed on fixture and broach is pulled or pushed. Sharp edges of broach penetrate into work piece and due to shearing action plastic deformation of work piece takes place and metal removes in form of chips. 1) According to type of operation: -External broach -Internal broach 2) According to method of Operation: -Push broach -Pull broach 3) According to type of construction: -Solid broach -built up broach -inserted tooth -Progressive broach 4) According to Function : -Key way broach -Surface broach -Spline broach -Round Hole Broach . Types of broaching machines A)According to direction of broach travel. 1) Horizontal broaching machine 2) Vertical broaching machine B)According to Method of operation. 1) Pull broaching machine 2) Push broaching machine 3) Surface broaching machine 4) Continuous broaching machine C)According to Method of drive. 1) Mechanical Drive machine 2) Pneumatic drive machine 3) Hydraulic drive machine D)According to type of operation. 1) External broaching machine 2) Internal broaching machine . • Usually pull type. • Bed is approximately double size than broach stroke • Ram is hydraulically operated. slots etc. • Used to make keyways. Horizontal broaching machine. • Used for internal and external broaching. . splines. 8micron finishing can be obtained 6)Interchangeability of components can be done due to tolerances obtained in range.Advantages of broaching: 1)High production rate. 2)Job is prepared in one stroke 3)High tool life 4)Internal and external machining can be done 5)0. 7)Roughing and finishing can be done in single stroke . Disadvantages of broaching: 1) Costly tool 2) Not suitable for small batch. 3) Less amount of material is removed 4) Proper fixtures are required. . 5) Strains are produced in w/p 6) Surfaces should be parallel to broach travel axis. rotors. compressor wheels. bushing and sleeves. cylinder head.Applications of Broaching Machine1) key ways. 3) Manufacturing of parts of aircraft engines and structures 4) special gears. splined shaft. 2) Used to produce wide range of parts rifle and gun manufacture. 5) Automobile parts like crank cases. turbine blades.surface broaching can be machined. connecting rods. power steering pistons are machined by broach . chain sprocket teeth etc. caps. Thank You .