Processing technology of connecting rod shaft
A processing technology and connecting rod shaft technology, which is applied in the processing technology field of connecting rod shafts, can solve problems such as high scrap rate, increased manufacturing cost, and difficult processing, and achieve stable product quality, improved production efficiency, and improved economic efficiency Effect
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Embodiment 1
[0026] This embodiment provides a processing technology for a connecting rod shaft, including the following steps:
[0027] (1) Rough turning process, when the workpiece is rough turning, ensure that the workpiece is initially formed, and keep a margin of 0.5-1mm;
[0028] (2) Quenching treatment, keep the workpiece at 800-850°C, and carry out free forging for 15-20min;
[0029] (3) Finish turning processing, using cubic boron nitride, the tool is used to finish the shape of turning, and a margin of 0.3-0.4mm is reserved;
[0030] (4) Coarse grinding, keep a margin of 0.1-0.2mm;
[0031] (5) Stabilization treatment, place the workpiece in an environment of 200-300°C for 1-2 hours for stabilization treatment;
[0032] (6) Semi-fine grinding;
[0033] (7) Secondary stabilization treatment, placing the workpiece in an environment of 200-250°C for stabilization treatment for 1-2h;
[0034] (8) Fine grinding, and the connecting rod shaft is finished.
Embodiment 2
[0036] This embodiment provides a processing technology for a connecting rod shaft, including the following steps:
[0037] (9) (1) Rough turning, when the workpiece is rough turning, ensure that the workpiece is initially formed, and keep a margin of 0.8-1mm;
[0038] (2) Quenching treatment, keep the workpiece at 800-830°C, and carry out free forging for 15-18min;
[0039] (3) Finish turning processing, using cubic boron nitride, the tool is used to finish the shape of turning, and a margin of 0.3-0.35mm is reserved;
[0040] (4) Coarse grinding, keep a margin of 0.1-0.15mm;
[0041] (5) Stabilization treatment, place the workpiece in an environment of 250-300 °C for 1-1.5 hours for stabilization treatment;
[0042] (6) Semi-fine grinding;
[0043] (7) Secondary stabilization treatment, placing the workpiece in an environment of 200-250°C for 1.5-2 hours for stabilization treatment;
[0044] (8) Fine grinding, and the connecting rod shaft is finished.
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