Cutting Tools Episode 1 Part 4 pptx

... tra- ditional cutting processes to hard metals and alloys by selecting an appropriate D × × (RPM) SFPM = 12 3 . 14 16 × 5 × 250 SFPM = 12 = 3927 12 Answer = 327.25 or 327 SFPM Answer = 3 34 .13 or 3 34 RPM 12 ... 3 34 .13 or 3 34 RPM 12 × SFPM RPM = × D RPM = 12 × 350 3 . 14 16 × 4 = 42 00 12 .57 Chamfering: The tool is used to cut an angle on the corner of a cylinder. Par...

Ngày tải lên: 21/07/2014, 15:20

... the tool. Carbide grain sizes at 15 00x magnifica- tion are shown in Exhibits 1. 10 and 1. 11. In the C- classification method (Figure 1. 12), grades C -1 through C -4 are for cast iron and grades C-5 ... of 90% WC and 10 % Co. Figure 1. 11. Carbide grain size (7 microns WC @ 15 00×) consisting of 90% WC and 10 % Co. Chap. 1: Cutting- Tool Materials www.toolingandproduction.com C...

Ngày tải lên: 21/07/2014, 15:20

... shown in Figure 13 .13 and a machining center with an adjust- able head, tool change magazine and a pallet system is shown in Figure 13 . 14 FIGURE 13 .10 : Preset machining center tools are stored ... Machine) FIGURE 13 .15 : Flexible machining system. (Courtesy Sandvik Coromant Co.) FIGURE 13 .16 : FMS material-handling system. (Courtesy Giddings + Lewis LLC) Chap. 13 : Milling Me...

Ngày tải lên: 21/07/2014, 15:20

... Machine, Inc.) FIGURE 9 . 14 : Various size drill chucks are shown. (Courtesy: Royal Products) FIGURE 9 .15 : Deep-hole drilling tools; the gun drills were manufactured by Hyper Tool and the indexable tools were manufactured ... tube occupies 3 /4 of its circumference. Figure 9 .16 shows a gun drilling system and its component parts. Gun Drills Gun drills belong to the pressurized coolan...

Ngày tải lên: 21/07/2014, 15:20

... steel at 40 0 SFPM? SFPM 40 0 40 0 RPM = ________ = ________ = ____ .262 x d .262 x .75 .19 65 Answer = 2035.62 or 2036 RPM Drilling Feed: Once the cutting speed has been selected for a particular workpiece ... attached. Trepanning tools produce holes faster than more conven- tional tooling as shown in Figure 8.25. From left to right are shown a 1 1/2 inch hole drilled into a 2 inch...

Ngày tải lên: 21/07/2014, 15:20

... diagram Velocity 40 ° Cutting stroke 220° 14 0° 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 ... 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...

Ngày tải lên: 21/07/2014, 15:20

... to 1 divided by the total number of threads per inch (P =1/ [no.threads/in.]). A screw having a single lead with 16 threads per inch has a pitch equal to 1/ 16 in., commonly referred to as a 16 -pitch ... main thread series: 1. Unified Coarse (UNC) 2. Unified Fine (UNF) 3. Unified Extra-Fine (UNEF) 4. Unified 8-Pitch (8 UN) 5. Unified 12 -Pitch (12 UN) 6. Unified 16 -Pitch (16 UN) The...

Ngày tải lên: 21/07/2014, 15:20

... 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 the time spent in machining each part. ... or on the back of the structure, carries anywhere from 4 to 18 tool sta- tions. The tools are preset for the vari- ous operations. The tools are mounted in proper sequence on...

Ngày tải lên: 21/07/2014, 15:20

... a MaterialHardness Machinability Rating 60 61- T Aluminum — 19 0% 7075-T Aluminum — 12 0% B 111 2 Steel 16 0 BHN 10 0% 41 6 Stainless Steel 200 BHN 90% 11 20 Steel160 BHN 80% 10 20 Steel 148 BHN Chap. 3: Machinability of Metals 4 Tooling ... 16 0 Brinell AISI B 111 2 free machining low carbon steel. The American Iron and Steel Institute (AISI) ran turning tests of this material at...

Ngày tải lên: 21/07/2014, 15:20

... 5¡ C — 7¡ P — 11 ¡ D — 15 ¡ E — 20¡ F — 25¡ G — 30¡ H — 0¡ — 11 ¡ J — 0¡ — 14 ¡ K — 0¡ — 17 ¡ L — 0¡ — 20¡ M — 11 ¡ — 14 ¡ R — 11 ¡ — 17 ¡ S — 11 ¡ — 20¡ Secondary facet angle may vary by — 12 Insert Style A ... 0.0005 E = 0.0 01 G = 0.0 01 (3)M = 0.002-0. 010 (3)U = 0.005-0. 012 0.0 01 0.0 01 0.0 01 0.0 01 0.0 01 0.0 01 0.002-0.0 04 0.005-0. 010 0.0 01 0.005 0.0 01...

Ngày tải lên: 21/07/2014, 15:20