Cutting Tools Episode 1 Part 2 ppt

... 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 ... — (B) Cutting Pt. (A) I.C. (T) Thickness (2) A= 0.0 01 B = 0.00 02 C = 0.0005 D = 0.0005 E = 0.0 01 G = 0.0 01 (3)M = 0.0 02- 0. 010 (3)U = 0.005-0. 0 12...

Ngày tải lên: 21/07/2014, 15:20

... tra- ditional cutting processes to hard metals and alloys by selecting an appropriate D × × (RPM) SFPM = 12 3 .14 16 × 5 × 25 0 SFPM = 12 = 3 927 12 Answer = 327 .25 or 327 SFPM Answer = 334 .13 or 334 RPM 12 ... 334 .13 or 334 RPM 12 × SFPM RPM = × D RPM = 12 × 350 3 .14 16 × 4 = 420 0 12 .57 Chamfering: The tool is used to cut an angle on the corner of a cylinder. Part...

Ngày tải lên: 21/07/2014, 15:20

... TaC alloys Cut Increasing cutting speed Increasing feed rate Characteristics Of Carbide Typical Properties Hardness H-Ra Transverse Rupture Strength (MPa) 89.0 2, 400 92. 0 1, 725 92. 5 1, 400 93.5 1, 20 0 91. 0 2, 070 92. 0 1, 725 93.0 1, 380 94.0 1, 035 Increasing cutting ... stronger the tool. Carbide grain sizes at 15 00x magnifica- tion are shown in Exhibits 1. 10 an...

Ngày tải lên: 21/07/2014, 15:20

... devices 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, ... System (STS). Some of the tools used in deep-hole drilling are shown in Figure 9 .15 . Hyper Tool manufactured the gun drills, and Sandvik manufactured the index- able tools. 9.6 .1...

Ngày tải lên: 21/07/2014, 15:20

... 400 RPM = ________ = ________ = ____ .26 2 x d .26 2 x .75 .19 65 Answer = 20 35. 62 or 20 36 RPM Drilling Feed: Once the cutting speed has been selected for a particular workpiece material and condition, ... Given a .25 inch drill, what is the cutting speed (SFPM) drilling cast iron at 5000 RPM? SFPM = .26 2 x d x RPM SFPM = .26 2 x .25 x 5000 Answer = 327 .5 or 327 SFPM RPM can be c...

Ngày tải lên: 21/07/2014, 15:20

... diagram Velocity 40° Cutting stroke 22 0° 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 ... have lower speeds. A 16 inch shaper may have speeds of 27 to 15 0 strokes per minute, while a 24 inch shaper will have 10 to 90 strokes per m...

Ngày tải lên: 21/07/2014, 15:20

... 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 coarse-thread ... 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...

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. ... machine is shown in Figure 5 . 12 FIGURE 5 .10 : DeVlieg tooling for single- or multi-spindle automatic lathe (Courtesy: National Acme Co., Div. DeVlieg-Bullard Inc.) FIGURE 5 .11...

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% 416 Stainless Steel 20 0 BHN 90% 11 20 Steel160 BHN 80% 10 20 Steel148 BHN Chap. 3: Machinability ... 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 18 0 surface...

Ngày tải lên: 21/07/2014, 15:20

... be scattered 48 Answers Index PHOTOCOPIABLE © www.english-test.net Test 22 TOEIC Vocabulary / Meaning by Word / Test # 22 Q1 adj. waste (a) inventive; innovative; artistic (b) firm; faithful; persistent; ... organization 43 Answers Index PHOTOCOPIABLE © www.english-test.net Test 21 TOEIC Vocabulary / Meaning by Word / Test # 21 Q1 n. infancy (a) a support that consists of a horizontal...

Ngày tải lên: 21/07/2014, 21:21