SAT II History Episode 2 Part 4 pps

... closed with a lever-oper- ated cam or with a large locking nut. Figure 13 . 24 a shows various size collets and Figure 13 . 24 b shows a number of tool holders including collets and a set-up fixture. Toolholders: ... is less versatile for machining small parts. Its advantages lie in its higher productivity, its adaptability to large sized machines, and its ease of modifi- cation to special ap...

Ngày tải lên: 21/07/2014, 15:20

... friction ( )µ µ 1.0 0.8 0.6 0 .4 0 .2 Optimum slip ratio for TCS 1.0 0.8 0.6 0 .4 0 0 .2 0 .2 0 .4 0.6 0.8 1.0 Slip ratio ( brakin g) Slip ratio ( acceleratin g) Fig. 7. 42 Tyre grip as a function of ... to the rear and 34% to the front, determined by the 2: 1 leverage ratio of this parti- cular epicyclic gear train. This torque distribution is achieved by the ratio of the radii of...

Ngày tải lên: 21/07/2014, 17:20

... box definition (b) case; crate; punch; hit 45 8 Questions Index PHOTOCOPIABLE © www.english-test.net Answers 122 TOEIC Vocabulary / Meaning by Word / Test # 122 (Answer Keys) A1 v. lease definition ... reply definition (a) answer; response 45 6 Questions Index PHOTOCOPIABLE © www.english-test.net Answers 1 24 TOEIC Vocabulary / Meaning by Word / Test # 1 24 (Answer Keys) A1 adj. collectib...

Ngày tải lên: 21/07/2014, 21:21

Ngày tải lên: 21/07/2014, 21:21

Ngày tải lên: 21/07/2014, 21:21

... carvel-built of 2. 8cm (1 in) planks for sailing or rowing by thirty-six men. It was 24 m (79ft) long by 4. 4m ( 14. 5ft) beam and some 23 tonnes displacement with an estimated speed of 14kph (7.6 knots) when ... was mined at Mount Sinai as early as 5000 BC and 20 00 years later in Oman in the south of Arabia. These are respectively some 140 0 and 20 00km (875– 125 0 miles) from Mesopot...

Ngày tải lên: 04/07/2014, 01:20

Ngày tải lên: 09/07/2014, 22:20

Ngày tải lên: 09/07/2014, 23:20

... (mm) 1 2 3 4 5 0,003 0,013 0,053 0,5 3 0,1 0 ,25 1 6 8 0,7 – 0,8 1,1 – 1,5 2, 4 – 2, 7 4 – 4, 5 4, 7 – 5,7 0,1 0 ,2 0,6 2, 5 3 0,6 – 0,7 1 – 1,1 1,5 – 1,7 1,8 – 2, 2 2, 5 - 3 ... có tính chất rất cứng. Ví dụ độ cứng của hợp kim 94WC+6Co trong quá trình gia công tia lửa điện có thể tăng từ 1796 kg/mm 2 lên 25 00 kg/mm 2 . Từ đó tuổi bền của dụng cụ...

Ngày tải lên: 10/07/2014, 02:20

Ngày tải lên: 10/07/2014, 05:20