A multi-directional controllable split flow forging forming method for excavator bucket teeth

Abstract

The invention discloses a multi-directional controllable distribution forging forming method for excavator bucket teeth. According to the method, the two working procedures of preforging and finish forging are adopted; through linkage extrusion in the upper, left and right three directions, controllable distribution of metal is realized reasonably at the proper time during the preforging and finish forging forming process. Forming force is effectively reduced. The service life of dies is remarkably prolonged. The dimensional accuracy of products is remarkably improved. The utilization rate of raw materials is remarkably increased. The production cost and energy consumption are reduced. Environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of forging, in particular to a multi-directional controllable diversion forging forming method, in particular to a multi-directional controllable diversion forging forming method of excavator bucket teeth. Background technique [0002] Bucket teeth are one of the important parts of the excavator. They are the most frequently used parts, the harshest working environment, and the most vulnerable parts. Bucket teeth are in direct contact with materials during work, and at the same time bear impact loads and bending loads. Their strength and wear resistance directly determine the service life of bucket teeth. With the continuous expansion of the use scale of excavators, the demand for bucket teeth is increasing, and the energy consumption and environmental pollution in the production of bucket teeth and the recycling of waste bucket teeth are becoming more and more serious. Therefore, the bucket tooth manufactur...

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Problems solved by technology

[0003] At present, excavator bucket teeth are mainly formed by casting, and the production process is relatively cumbersome. The products are usually accompanied by casting defects such as pores, sand holes, sand inclusions, shrinkage porosity, and shrinkage cavities, which seriously affect their service life.

At the same time, harmful gases, dust and other pollutants produced during the casting process of bucket teeth seriously affect the environmental quality

[0004] In recent years, in order to improve the comprehensive performance of bucket teeth and reduce environmental pollution, forging has also begun to be used in the production and manufacture of bucket teeth. The metal in the cavity is divided, and the three-dimensional shape of the bucket teeth of the excavator is complex. The metal deforms a lot during the forging process of the bucket teeth, and the local flow is severe. When the bucket teeth are formed by the conventional forging method, the force on the mold is extremely uneven. Easy to cause mold failure due to cracking, excessive local wear, etc.

In addition, the conventional forging method cannot realize the forming of bucket teeth with complex shapes, especially the forming and demoulding of bucket teeth with no draft slope or even negative slope.

Therefore, the insufficiency of conventional forging forming methods limits the popularization and application of forging forming in bucket tooth production

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