geometry single point cutting tools

... Nomenclature and Definitions for Single- Point Cutting Tools and ISO 3002-1:1982, Basic quantities in cutting and grinding - Part 1: Geometry of the active part of cutting tools - General terms, reference ... Chapter 2: Basic Definitions and Cutting Tool Geometry, Single Point Cutting Tools This chapter presents the basic terms and their definitions related to cutting tool geometry according to ISO and ... understanding of tool geometry, namely, the shapes, angles, and other geometric aspects of single- point and multipoint cutting tools He should be well equipped for all the facets of geometry related...

Ngày tải lên: 08/04/2014, 11:17

... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines ... also called Hot Hardness Toughness: Toughness of cutting tools is needed so that tools don’t chip or fracture, especially during interrupted cutting operations Wear Resistance: Wear resistance ... from the to HSS or carbide tools Proper tool geometry and edge preparation play an nium carbo-nitride is one of neutrality, words ‘ceramic’ and ‘metal’ Ceramic Cutting Tools: Ceramics important...

Ngày tải lên: 17/12/2013, 11:15

... End -cutting edge angle Side -cutting edge angle Nose radius Side relief angle Side clearance angle Negative back rake Positive back rake End relief End clearance 2.4 Single Point Cutting Tools ... basic types: plane, and only a single, straight cutting • discontinuous or segmented edge is active In oblique cutting, ( Fig • continuous 2.5b), a single, straight cutting edge is • continuous ... metals are cut under poor helical form of chip cutting conditions As the point of the 2.3.1 Chip Formation cutting tool contacts the metal, some Metal cutting chips have been classified compression...

Ngày tải lên: 17/12/2013, 11:15

... raked cutting geometries Positive cutting geometries produce lower cutting forces and, therefore chip formation is enhanced on elastic material using these types of tools Sharp positive cutting ... careful selection of cutting geometry and speed Positive rake tools are often preferred on these materials to minimize part deflection and to reduce cutting temperatures in the cutting zone The generous ... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines...

Ngày tải lên: 17/12/2013, 11:15

... stronger cutting position A lead angle many as four cutting tools Any cutting Occasionally, however, moving the should also be used whenever possible tool can be quickly brought into posi- cutting point ... 4.2f Single point tools are used in most operations performed on a lathe A short description of six additional lathe operations are given below: www.toolingandproduction.com Chap 4: Turning Tools ... clamped in any angular FIGURE 4.15: A toolpost for single- point tools (a) and a quick change indexing square turret, which can hold up to four tools (b) (Courtesy Dorian Tool) position in the horizontal...

Ngày tải lên: 17/12/2013, 11:15

... cuts • Combined cuts can be made; tools on the cross slide can be used at the same time that tools on the turret are cutting • Rigidity in holding work and tools is Chapter 5/Tooling & Production ... Although skill is required an automatic trip lever stops further tools All tools mounted on the turret or to set and adjust the tools properly, once they are correct, less Spindle skill is required ... for indexing the workpiece to tools mounted on the various spindles These tools might include drills, countersinks, boring bars, and other rotating cutters Both single- and multiple-spindle automatics...

Ngày tải lên: 17/12/2013, 11:15

... finishing Cutting angles for tools depend on the tool used and the workpiece material They are similar to angles used on other single- point tools, but the end clearance does not exceed degrees Cutting ... are single point tools and cut only in straight lines They both make the same types of cuts The shaper handles relatively small work The planer handles work weighing up to several tons The cutting ... carbide tipped cutting tools similar to those used on shapers However, since planers make heavy cuts, their tools are much larger Rake relief angles are similar to those used on lathes for cutting cast...

Ngày tải lên: 17/12/2013, 11:15

... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines ... to perform removed and Morse tapered cutting horsepower needed is the sum of the the required machining operation tools are mounted power for all cutting tools used In this Size Classification: ... the shank of the cutting tool plished by use of drill bushings Sockets: If the cutting tool has a tapered shank larger than the spindle 9.5.1 Tool Holding Devices Some cutting tools used in drilling...

Ngày tải lên: 25/12/2013, 23:17

... between the cutting depth and the size of the nose radius If the cutting depth is smaller than the nose radius, the radial cutting forces will increase with increased cutting depth If the cutting ... the machine at a cutting depth that is greater than the desired cutting depth compensates for the radial deflection When cutting begins, the radial cutting force reduces the cutting depth Even ... Adjustable boring head for single- point boring tools (Courtesy Kennametal Inc.) 10.6 Boring Bars Boring bars are made in a wide variety of styles as shown in Figure 10.4 Single- point boring bars (Fig...

Ngày tải lên: 25/12/2013, 23:17

... peripheral cutting edge may still be removing most of the metal It corresponds to the end cutting edge on single point tools Relief Angle: This angle is measured between the land and a tangent to the cutting ... starting points After the cutting speed is chosen, the spindle speed must be computed and the machine adjusted Cutting Speed: Cutting speed is defined as the distance in feet that is traveled by a point ... Positive Geometry: Double positive cutters use positive inserts held in positive pockets This is to provide the proper clearance for cutting Double positive cutter geometry provides for low force cutting, ...

Ngày tải lên: 25/12/2013, 23:17

... the periphery, and on one or both sides, is used When a single cutter is being used, the teeth on both the periphery and sides may be cutting The machined surfaces are usually either perpendicular ... is mounted The cutter ranges in size and complexity from a simple, single- tool flycutter to an inserted-tooth cutter with many cutting edges Large face mills are usually mounted rigidly to the ... 13.8b Planer-type machines are used mostly for machining parts like the bedways for large machine tools, and other long workpieces that require accurate flat and angular surfaces or grooves Profile...

Ngày tải lên: 25/12/2013, 23:17

... Broaching Tools A broach is like a single point tool with many ‘points’ each of which cuts like a flat-ended shaper tool, although some broaches have teeth set diagonally, called sheer cutting ... Broaching rough, semi-finish, and finish cutting teeth combined in one tool or string of tools A broach tool frequently can finish machine a rough surface in a single stroke A large broach is shown ... of chipbreakers is followed by a cutting edge The finishing teeth complete the job Chipbreakers are vital on round broaching tools Without the chipbreakers, the tools would machine ring-shaped...

Ngày tải lên: 25/12/2013, 23:17

... Figure 16.12 Diamond dressing tools - utilize the unsurpassed hardness of a diamond point to clean and restore the wheel grinding face Although single point diamond tools were once the only products ... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines ... the increasing scarcity of diamonds has led to the development of multi -point diamond tools Multi -point diamond dressing tools use a number of small diamonds held in a matrix In use, the tool...

Ngày tải lên: 25/12/2013, 23:17

... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines ... straight-fluted taperededge or margin of a reamer Cutting Edge: The cutting edge is these reamers tend to pull shank reamer (Courtesy: Morse Cutting Tools) the leading edge of the land in the down ... fluted cutting tool to smooth, enlarge, or accurately size an existing hole Reaming is performed using the same types of machines as drilling A reamer is a rotary cutting tool with one or more cutting...

Ngày tải lên: 25/12/2013, 23:17

... 11.12: (a) Spiral -point taps have replaced ‘stanshaped so that they dard’ taps in many cases (b) A spiral-fluted bottoming tap ‘cold form’ the metal (Courtesy: Morse Cutting Tools) out of the ... round FIGURE 11.17: Combination drill and tap tools are used part is shown in Fig- for one-pass drilling and tapping (Courtesy: Morse Cutting ure 11.16 Tools) Tap Drills: It is quite obvious that ... production work 11.3.3 Operating Options Some threads, both external and internal, can be cut with a single- point tool as previously shown However, most frequently a die or tap of some type is used because...

Ngày tải lên: 25/12/2013, 23:17

... rearrangement This can either be a single- point mutation, or if all single- point mutations are silent mutations, the least amount of consecutive nucleotide single- point mutations that will cause ... inactivating point mutations (referenced as “mut 1”) is the ability of a single- point mutation to alter the distribution of RNA conformers This supports the hypothesis that a single- point mutation ... predicting single- point mutations that will cause structural rearrangements with respect to the wildtype structure of RNA transcripts from pJ697 [22] depicted in Figure The six single- point mutations...

Ngày tải lên: 22/06/2014, 23:20

... Wear mechanisms of HSS cutting tools Towards better performance of HSS cutting tools 7.1 13 Improving the HSS material From the demonstrated mechanisms of wear of HSS cutting tools we can draw the ... orthogonal cutting as a model the general characteristics of a worn HSS cutting tool are schematically illustrated in Fig Primarily, depending on cutting operation, cutting parameters, cutting parameters, ... of HSS cutting tools Adhesive wear dominates the flank and crater wear of HSS tools if the edges reach high temperatures, i.e at high cutting speed Adhesive wear is further promoted when cutting...

Ngày tải lên: 07/07/2014, 21:21

... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines ... button; everything else is automatic Single- Stroke Honing: A still faster and more accurate method of honing a bore to final size is Single- Stroke honing The Single- Stroke tool (Fig 18.15) is an ... Material removal is accomplished at lower cutting speeds than in grinding Therefore, heat and pressures are minimized, resulting in excellent size and geometry control The most common application...

Ngày tải lên: 21/07/2014, 15:20

... Upcoming Chapters Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines ... must have a are available for sharpening most types precision lead screw to produce the of cutting tools Sharpening of a tap is correct pitch, or lead, on a threaded shown in Fig 17.17a and grinding ... shown netic chuck operates on 110 or 220 in Figure 17.9 The volts and is energized by a switch This points on these centers type of chuck has two advantages may be high-speed First, the holding power...

Ngày tải lên: 21/07/2014, 15:20