对该冷精锻模的工作过程、特点等进行了分析。
The working process and character of the designed cold precision forging die for bevel gear was analyzed.
气门热精锻模具失效的主要形式是热磨损和压塌。
The main failure mode of the finish hot- forging dies for Valves are the hot wear of col- lapse.
基于冷锻成形原理，对锥齿轮冷精锻模进行了设计。
The bevel gear's cold forging die was designed based on the principles of cold precision forming.
对新型精铸模具钢制热锻模具的失效进行了分析，并对不同形式下模具的失效原因作了探讨。
The failure dies of hot forged cast dies made by a new type of cast steel have been analyzed. The failure causes of different failure patterns are discussed.
模具及仪器类：压铸模具、低压铸造模具、重力铸造模具、砂型铸造模具、精铸模、冲压模、辊锻模等。
Mould and equipments : Die-casting mould, Low pressure casting mould, Gravity casting mould, Sand casting mould, Finish cast die, Stamping mould, Forge rolling die mould and so on.
高温磨损机理为氧化物疲劳剥落磨损，精铸热锻模具钢磨损磨屑为厚大块状，而H13钢磨损磨屑以条状为主。
The high temperature wearing was due to the fatigue delamination of the oxide, the lump wear debris were revealed on the precision cast steel, and the bar wear debris on H13 steel.
指出了精铸热锻模具制造中存在的成型问题，并提出了建议。
The problems in cast technologies of hot-forging dies are pointed out and suggestions are presented.
结果表明，精铸热锻模的主要失效形式为热磨损、塑性变形、热疲劳裂纹、冲击疲劳破断和脆性断裂。
The results show that hot-forged cast dies take thermal wear, plastic deformation, thermal fatigue, impact fatigue fracture and brittle fracture as predominant failure patterns.
研究了新型精铸热锻模具钢的高温磨损性能，并与H13钢进行对比探讨高温磨损机理。
The high temperature wear property of a new type precision cast hot-forging die steel was studied, and compared with that of H13 steel. The mechanism of the high temperature wear was discussed.
论述了精锻汽车差速器半轴齿轮原模具结构存在的问题，改进了锻造工艺和锻件设计，设计了新型粗锻模和精压模。
A new precision forming technology was presented, which uses an ordinary forging machine and a high precision rotary forging machine to make the closed-tolerance semi-axle bevel gear forgings.
研究结果表明：材质及工艺决定了精铸热锻模具呈现不同的失效形式和寿命。
Results show that different failure modes and lives are dependent on the material composition and subsequent processing.
介绍了美式八角锤锤体精锻成形新工艺及其预锻模结构设计要点。
A description has been given to new process and important points of structure design of pre-forming die for precision forging U. S. A type of octagonal hammer with a practical die presented.
结果表明，精铸热锻模具的使用寿命和稳定性得到了明显提高；
The results show that the life and stability of the die elevates;
结果表明，精铸热锻模具的使用寿命和稳定性得到了明显提高；
The results show that the life and stability of the die elevates;
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