Tài liệu Cutting Tools P13 pdf

... 13/Tooling & Production 1 Metal Removal Cutting- Tool Materials Metal Removal Methods Machinability of Metals Single Point Machining Turning Tools and Operations Turning Methods and Machines Grooving ... adjusted accurately in incre- ments of 0.0001 inch. Flycutters can be used for facing operations. The tools in cutters of this type are adjusted so that both a rough- ing and finish...

Ngày tải lên: 25/12/2013, 23:17

... 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 ... when cutting cast iron. Tool life may be defined as the peri- od of time that the cutting tool performs efficiently. Many variables such as material to be machined, cutting tool mat...

Ngày tải lên: 17/12/2013, 11:15

... relatively unskilled person for mass producing machined parts. The cutting tools were preset, or “set up” by a skilled machinist, and usually several cutting tools were in operation at the same time, reducing ... 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...

Ngày tải lên: 17/12/2013, 11:15

... fly cutters, consist of cutting tools that are bolted or otherwise fas- tened to adapters. Solid End Mills: Solid end mills have two, three, four, or more flutes and cutting edges on the end ... milling machines. (Courtesy Morse Cutting Tools) Tooth Tooth face Gash angle Land Flute Fillet O utside diam eter Root diameter Radial rake angle Peripheral cutting edge Secondary clearanc...

Ngày tải lên: 25/12/2013, 23:17

... also called Hot Hardness Toughness: Toughness of cutting tools is needed so that tools don’t chip or fracture, especially during interrupt- ed cutting operations. Wear Resistance: Wear resistance means ... Wear resistance means the attainment of acceptable tool life before tools need to be replaced. The materials from which cutting tools are made are all characteristically hard...

Ngày tải lên: 17/12/2013, 11:15

... of the cutting tool, are dependent on the multi- tude of cutting conditions and especial- ly on the cutting speeds and cutting flu- ids. Aside from the sudden premature breakage of the cutting ... Single Point Cutting Tools The metal cutting tool separates chips from the workpiece in order to cut the part to the desired shape and size. There is a great variety of metal cuttin...

Ngày tải lên: 17/12/2013, 11:15

... insert, behind the nose. 4.5 Cutting Conditions After deciding on the machine tool and cutting tool, the following main cutting conditions have to be considered: • Cutting speed • Depth of cut • ... metal cutting. Except at the beginning and end of the cut, the forces on the cutting tool and the tool tip temperature are essentially constant. For the special case of facing, the vary...

Ngày tải lên: 17/12/2013, 11:15

... diagram Velocity 40° Cutting stroke 220° 140° Return stroke 1.0 1.6 R e t u r n Velocity diagram Forward cutting speed Return speed (b) Velocity Return stroke (faster) Shaper ram Cutting stroke 4-way valve Pump Tank Motor Base Ram ... 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 w...

Ngày tải lên: 17/12/2013, 11:15

... màu ở Channels palette được thay thế bởi một kênh màu xám Gray . 7. Chọn File > Save để lưu tài liệu lại. Gán các giá trị cho điểm Đen và Trắng Bạn còn có thể cải thiện chất lượng của bức

Ngày tải lên: 25/12/2013, 03:15

... shown in Figure 9.12. Drill Chucks: Cutting tools with straight shanks are generally held in a drill chuck. The most common drill chuck uses a key to lock the cutting tool. Drill chucks, both with ... with key and keyless, are shown in Figures 9.13. Sleeves: Cutting tools with tapered shanks are available in many different sizes. When a cutting tool that has a smaller taper than t...

Ngày tải lên: 25/12/2013, 23:17