Precise forging method for engineering machine connecting rod

A technology of precision forging and engineering machinery, applied in the field of precision forging of engineering machinery connecting rods, can solve the problems of large forging machining allowance and material consumption, and achieve the effects of less uniform processing, cost reduction, and stable tolerances.

Inactive Publication Date: 2017-10-10
河池桂嘉知识产权服务有限公司
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AI-Extracted Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a precision forging method for engineering machinery connecting rod...
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Abstract

The invention discloses a precise forging method for an engineering machine connecting rod, and relates to the technical field of connecting rod precise forging and manufacturing. The method comprises the following steps that A, blank heating is conducted, and the temperature ranges from 1,180 DEG C to 1,200 DEG C; B, a blank is arranged in a die cavity inner drawing-out rod part of a rod part drawing-out die and then placed in a die cavity of a first forge die, and a forge piece rough blank is obtained; C, the forge piece rough blank is placed in a die cavity of a second forge die to be forged, and a forge piece is obtained; D, the forge piece is subjected to edge cutting, burr grinding and shot blasting treatment; and E, the forge piece is placed in a die cavity of a correction fine press forge die to be corrected and subjected to fine press, the temperature ranges from 500 DEG C to 700 DEG C, and precise forging of the engineering machine connecting rod is finished. Compared with the prior art, the problems that during existing engineering machine connecting rod forging, the machining allowance is large, and material consumption is large can be solved.

Application Domain

Metal-working apparatus

Technology Topic

Material consumptionMaterials science +2

Image

  • Precise forging method for engineering machine connecting rod
  • Precise forging method for engineering machine connecting rod

Examples

  • Experimental program(2)

Example Embodiment

[0014] Example 1:
[0015] Such as figure 2 The construction machinery connecting rod shown has a connecting rod big end and a connecting rod small end connected by a rod part, and holes are respectively provided on the connecting rod big end and the connecting rod small end;
[0016] This kind of precision forging method of construction machinery connecting rod includes the following steps:
[0017] A. The billet is heated at a temperature of 1180℃~1200℃;
[0018] B. Place the blank in the cavity of the long rod drawing die to draw the long rod, and then place it in the cavity of the first forging die to forge a rough forging, such as figure 1 Shown
[0019] C. Place the rough blank of the forging in the cavity of the second forging die to forge the forging, such as figure 2 Shown
[0020] D. Trimming, grinding burrs and shot blasting for forgings;
[0021] E. Place the forging in the die cavity of the correction precision forging die for correction and precision pressing. The precision forging of the connecting rod of the construction machinery is completed when the temperature is 500℃.

Example Embodiment

[0022] Example 2:
[0023] A precision forging method for connecting rods of construction machinery includes the following steps:
[0024] A. The billet is heated at a temperature of 1180℃~1200℃;
[0025] B. Place the blank in the cavity of the long rod drawing die to draw the long rod, and then place it in the cavity of the first forging die to forge a rough forging, such as figure 1 Shown
[0026] C. Place the rough blank of the forging in the cavity of the second forging die to forge the forging, such as figure 2 Shown
[0027] D. Trimming, grinding burrs and shot blasting for forgings;
[0028] E. Place the forging in the die cavity of the correcting precision forging die for correction and precision pressing. The precision forging of the connecting rod of the construction machinery is completed at a temperature of 500°C; other features are the same as the first embodiment.

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