1 It has elaborated the advantages replacing closed - die forging with closed extrusion die forging.

2 The main application range of die forging process on screw press are summarized.

3 Above result revealed that multidirectional closed die forging of spiral bevel gear was feasible.

4 The technological parameters of liquid die forging for the different kind of forging materials were recounted.

5 Review the course of China's hydraulic hammer for die forging.

6 And as for the closed die forging,[] billet size will affect the process directly.

7 It has elaborated the advantages replacing hot die forging with the cold forging technology.

8 With the die set fro the multiway die forging developed by the authors, only one stroke of the crank-shaft press is needed for extruding a heated block into a precision forging of a pipe joint.

9 This paper analysed the cold die forging technology of automotive epicyclic gears.

10 No - flash die forging is an important branch of precision formed technique.

11 This paper presents comparisons of four technologies casting, die forging, PM forging and routine PM processing.

12 The theory of liquid metal die forging is the understanding of the process which combines solidification under high pressure with forced feeding by plastic deformation.

13 In the open die forging, the type of flash has great influence on the process forging.

14 The production process includes hammer die forging, pressure forging , roll forging formingprecision rolling - die forging composite technology.

15 A die forging approach of so called IN-OUT way is presented, which, firstly, let metal fulled up die cavity, and then it forced surplus metal to flow out.

16 The article discusses main design points of die holder for large die forging press, and gives suggestion to the Dong Feng Automotive company for future die holder design.

17 The results have shown that the new way of precision die forging is very efficient.

18 In the end it has suggested the special technological requirements of semisolid die forging.

19 Simulated AA 7075 aluminium conical shells of missiles are formed by means of hot die forging.

20 It has elaborated the advantages replacing die casting and common die forging with semisolid die forging.

21 The method to form supporting pedestal of railroad lorry by die forging was proposed.

22 The results shown that the new way of precision die forging is very efficient.

23 Through flow line distribution and fiber contexture of inner material point obtained from no-flash die forging test, the forged gears with high quality grade was explained.

24 The results shown that the new way of closed extrusion - die forging technology is very efficient.

25 The forming technology oft he upper body center plate in hot die forging and the characteristic of the die structure have been introduced with the analysis on the forming process.