The purpose of this subcourse is to introduce the uses of the lathe, to include safety. Larger machines have a machine control unit mcu which manages operations. Stop the lathe before making any measurements, adjustments, or cleaning. Development of production technology and machine tools presentation notes pdf. Equipment and processes index page technology student. Explore shaper machine with free download of seminar report and ppt in pdf and doc format. If the work must be repositioned or removed from the lathe. Beginning in the 1950s, servomechanisms were applied to the control of lathes and other machine tools via numerical control, which. The various operations that it can perform include the following.
Nowadays the manually controlled machine exists like a cnc machine and even do with the help of feed mechanism the lathe machine operates manually. You will see plenty of toolmaking videos too, as i make the tools required to make a clock. Place the turret lathe on 14 thick steel plates so that the load on the concrete is not concentrated on the set screw area. A centre lathe is one of the oldest and perhaps most important machine tool ever developed it. The function of the carriage is to carry and move the cutting tool. Instructions to learn how to use a lathe the lathe is a machine tool used principally for shaping pieces of metal and sometimes wood or other materials by causing the workpiece to be held and rotated by the lathe. Pdf centre lathe notes1 milling machines ment243 studocu. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. The top of the body provides guide ways for the ram and its front provides.
A lathe machine is a machine tool which is used to remove metals from a workpiece to give a desired shape and size. Lathe machines are used in metalworking, woodturning, metal spinning, thermal spraying, glass working, and parts reclamation the various other operations that you can perform with the help of lathe machine can include sanding, cutting, knurling. Venkaiah assistant professor mechanical engineering. Toolroom lathe and speed lathe turret lathe the tailstock is replaced with a turret chucking machines no tailstock automatic bar machine similar to chuck machine but with a collet a single and multiplespindle bar machines nc lathe. Varieties of cutters and holding devices allow a wide rage of cutting possibilities. Milling machines a milling machine is a power driven machine that cuts by means of a multitooth rotating cutter. A centre lathe is one of the oldest and perhaps most important machine tool ever developed. The turret lathe is a lathe used extensively for the highspeed production of duplicate parts. A metal lathe or metalworking lathe is a large class of lathes designed for precisely machining. In order to reach all essential headstock parts, first loosen the two thumb screws s49 in top cover casting m442 and lift cover, exposing the spindle and gears. Lathes the lathe is a machine tool used principally for shaping articles of metal and sometimes wood or other materials by causing.
Keep hands away from the cutting head and all moving parts. If any filing is done on work revolving in the lathe, file left handed to. Lathe operations od1645 lesson 1task 1 sliding gap feature, this lathe is similar to the floormounted engine lathe. If a chuck or faceplate is jammed on the spindle nose, contact an instructor to remove it. Lathe feeding and apron mechanism gear machines free. This mechanism is involved in the feed and crossfeed. The unit is secured to the lathe bed by a single bolt passing through a hole drilled therein. That is why, the lathe are also called turning machines. Lathe machines are used in metalworking, woodturning, metal spinning, thermal spraying, glass working, and parts reclamation. Feed mechanism in lathe free download as powerpoint presentation.
Clickspring is a home machining website with a focus on clock making. A lathe machine is a machine tool that is used to remove metals from a workpiece to give a desired shape and size. The wood lathing is the most ancient style of using a lathe in the woodworking and the lathe can be used to shape the raw wooden posts into the railing supports and table legs. V cutting velocity, vs shear velocity, vcchip velocity.
The haft nuts get engaged with the leadscrew by the blue slot face cam. A circular metal plate with even spaced holes around the periphery, mounted to the spindle, is called an index plate. Lathetypes, parts, feed mechanisms, specifications,lathe. The job to be machined is rotated turned and the tool is moved relative to the job. The angles are the side and back rake angles, the side and end cutting edge angles, and the side and end relief angles. The headstock h1 houses the main spindle h4, speed change mechanism h2. Never file lathe work unless the file has a handle. Tapping is the process of cutting a thread inside a hole so that a cap screw or bolt can be threaded into the hole. Craftsman 1012890010 lathe manual lost creek machine.
The carriage includes the apron, saddle, compound rest, cross slide, tool post, and the cutting tool. Granite 0 series combination lathe milldrill operators manual updated february 2019 170 aprill dr. This video explains the apron mechanism mounted over the carriage in a lathe machine. If a tool moves parallel to the axis of the rotation of the workpiece, cylindrical surface is produced, while if it moves perpendicular to. Working principle of lathe machine engineering tutorials. The headstock mechanism is driven by an electric motor connected either to a belt or pulley system or to. It sits across the lathe ways and in front of the lathe bed. Safety precautions while working with machinery stop the machine before measuring, cleaning or making any adjustments. Tool magazines are used to change tools automatically. A chuck is directly attached to the drive mechanism spindle of the lathe and rotates at variable speeds up to as much as rpm on this machine.
Mechanisms and mechanical devices sourcebook pdf mechanisms and mechanical devices sourcebook pdf file best ever 4th edition latest 5th edition paperbook. Regardless of the method, the hole must be drilled with the proper size tap drill and chamferred at the end. Od1645 edition 8 us army correspondence course program 7 credit hours new. It can be moved by hand or by power and can be clamped into position with a locking nut. Lathe, shaper, planer, milling, drilling, slotter, introduction to metal cutting introduction. Mechanisms for renewable power generation chapter 5.
The name of item12 lathe coast to coast nationwide service from sears for your craftsman metal lathe sears care sears, roebuck and co. The cutting tool is rigidly held and supported in a tool post which is fed against the revolving work. Cutting tools and blades must be clean and sharp, so that. A lathe machine is generally used in metalworking, metal spinning, woodturning, and glassworking. Also explore the seminar topics paper on shaper machine with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year mechanical engineering me or production automobile students for the year 2019 2020. Pdf designing and fabrication of double acting hacksaw. In woodturning, one subtype of a live center is a cup center, which is a cone of metal surrounded by an annular ring of metal that decreases the chances of the workpiece splitting. Lathe feeding and apron mechanism free download as powerpoint presentation. Lathe tool bit shapes can be pointed, rounded, squared off, or irregular in shape and still cut quite well as long as the tool bit angles are properly ground for the type of material being machined. Basic mechanism of chip formation in metal cutting. Combination of two or more of 1, 2, 3, 4 feed mechanism lathe clutch handle. A 3 or 6 jaw chuck has the ability to hold a wide range of cylindrical parts from. The various types of feed mechanism are discussed in detail. Join me as i blog and video the process of making a clock from raw metal stock.
Lathe machine seminar ppt with pdf report study mafia. Anticipating the future needs of industry, the design of the new cut master incorporates many visual as well as builtin features for increased production and efficiency, ease of operation and main tenance, great rigidity, flexibility and capacity together with modern lathe. Cnc application and design by patrick collins, charles cummings, wesley dittrich, paul jones, andrew sealey major qualifying project submitted to the faculty of the worcester polytechnic institute in partial fulfillment of the requirements for the degree of bachelor of science in mechanical engineering. The mill is constructed in such a manner that the fixed workpiece is fed into the rotating cutter. A lathe is a machine tool that rotates a workpiece about an axis of rotation to perform various. Tapping can be done on the lathe by power feed or by hand. Do not permit small diameter work to project too far from the chuck, over 3xs the works diameter, without support. Lathe types, parts, feed mechanisms, specifications, lathe accessories and attachments, lathe operations. Turning a machining process in which a singlepoint tool remove material from the surface of a rotating work piece. The lathe is a machine tool which holds the workpiece between two rigid and strong supports called centers or in a chuck or face plate which revolves.
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