Tài liệu Cutting Tools P3 pdf

... 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 ... cut- ter geometry provides for low force cutting, but the inserts contact the workpiece at their weakest point, the cutting edge. In positive rake milling, the cutting forces tend to lift t...

Ngày tải lên: 25/12/2013, 23:17

... 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 ... the side of the column. The base is usually hollow, and in many cases serves as a sump for the cutting fluid. A pump and filtration system can be installed in the base. The hole in...

Ngày tải lên: 25/12/2013, 23:17

Ngày tải lên: 13/12/2013, 03:15

... metals. Some diamond cutting tools are made of a diamond crystal compaction (many small crystals pressed together) bonded to a carbide base (Fig. 1.16). These dia- mond cutting tools should only ... Hardness and strength of the cutting tool must be maintained at elevated temperatures also called Hot Hardness Toughness: Toughness of cutting tools is needed so that tools don’t c...

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

... deciding on the machine tool and cutting tool, the following main cutting conditions have to be considered: • Cutting speed • Depth of cut • Feed rate The choice of these cutting condi- tions will affect ... that a cutting fluid offers is not worth the extra expense incurred, and in a growing number of applications, cutting fluids are simply unnecessary or downright detrimental. M...

Ngày tải lên: 17/12/2013, 11:15

... tipped cutting tools sim- ilar 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 lath- es for cutting ... fin- ishing. Cutting angles for tools depend on the tool used and the workpiece materi- al. They are similar to angles used on other single-point tools, but the end clearance does not...

Ngày tải lên: 17/12/2013, 11:15

Ngày tải lên: 22/12/2013, 11:15