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Forming method of forging round square steel through precision forging machine

A forming method and forging forming technology, which is applied in the field of steel forging, can solve the problems that precision forging machines cannot forge rounded square steel billets, and achieve the effects of facilitating flexible organization of production, saving operating time, and meeting product requirements

Active Publication Date: 2020-05-15
建龙北满特殊钢有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the precision forging machine cannot forge the rounded square steel billet, the invention provides a method for forming the rounded square steel forged by the precision forging machine

Method used

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  • Forming method of forging round square steel through precision forging machine

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A forming method for forging rounded square steel with a precision forging machine. A 16MN horizontal precision forging machine is used. The programming software for automatic control is BarForge. The model of the round hammer is R120.

[0026] Put the continuous casting billet into the gas heating furnace and heat it. The heating temperature is 1190-1210°C, and the holding time is 6-8h. The heating process in this embodiment increases the heating temperature by 20°C and extends the holding time by 2 hours compared with the normal billet, mainly to homogenize the billet at high temperature, reduce composition segregation, and prepare for metallurgical defects in the center of forging and welding.

[0027] In this embodiment, the precision forging machine adopts the forging deformation mode: circle→circle→circle→square, the total forging ratio from billet to finished square steel billet with round corners is 4.7, and the size of finished square steel is calculated accor...

Embodiment 2

[0033] A forming method for forging rounded square steel with a precision forging machine. A 16MN horizontal precision forging machine is used. The programming software for automatic control is BarForge. The model of the round hammer is R120.

[0034] Put the continuous casting billet into the gas heating furnace and heat it. The heating temperature is 1190-1210°C, and the holding time is 6-8h.

[0035] In this embodiment, the precision forging machine adopts the forging deformation method: circle → circle → circle → circle → square, the total forging ratio from the billet to the finished square steel billet with round corners is 4.7, and the size of the finished square steel is A=(0.81~0.82)D For calculation, A is the side length of the rounded square steel, and D is the diameter of the circle before the finished product.

[0036] In this embodiment, the precision forging machine uses a round hammer head for forging forming, and the forging frequency of the round hammer hea...

Embodiment 3

[0047] A forming method for forging rounded square steel with a precision forging machine. A 16MN horizontal precision forging machine is used. The programming software for automatic control is BarForge. The model of the round hammer is R120.

[0048] Put the continuous casting billet into the gas heating furnace and heat it. The heating temperature is 1190-1210°C, and the holding time is 6-8h.

[0049] In this embodiment, the precision forging machine adopts the forging deformation method: circle → circle → circle → circle → square, the total forging ratio from the billet to the finished square steel billet with round corners is 4.7, and the size of the finished square steel is A=(0.81~0.82)D For calculation, A is the side length of the rounded square steel, and D is the diameter of the circle before the finished product.

[0050] In this embodiment, the precision forging machine uses a round hammer head for forging forming, and the forging frequency of the round hammer hea...

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Abstract

The invention relates to a forming method of forging rounded square steel through a precision forging machine, and belongs to the technical field of steel forging. In order to solve the problem that the precision forging machine cannot forging the rounded square steel billet, the invention provides the forming method of forging rounded square steel by the precision forging machine. According to the method, a circular hammerhead is used for forging and forming, four passes are designed, the first to third passes are mainly circular deformation, and the fourth pass is the round billet which is transformed into the finished rounded square billet. According to the invention, the forging process parameters of the precision forging machine are optimized, the rounded square billet material finished product with high quality, high dimensional precision, dense and uniform structure and good surface quality are forged and used for hot processing such as forging, rolling, the folding defect of the products can be avoided, and the product qualification rate is improved. According to the forging method, the problem that the square hammerhead of the precision forging machine cannot produce the rounded square billet material is solved, the rounded square billet material is forged by using the round hammerhead, not only is the product requirement met, but also the working time of replacing thehammerhead is replace, the equipment production efficiency is improved, and flexible production organization is facilitated.

Description

technical field [0001] The invention belongs to the technical field of steel forging, and in particular relates to a method for forming rounded square steel forged by a precision forging machine. Background technique [0002] The right-angle square steel billet with a 90° edge angle is very suitable for cutting and processing, but when it is used for hot pressure processing, such as rolling and forging billets, the 90° corner of the right-angle square steel billet is prone to folding defects, resulting in product scrapping. Product demand cannot be met. At present, the blanks used for reforming forging and billet rolling in the market require rounded corners of R10-R30mm at the edges and corners of square steel blanks. [0003] There are mainly two production methods for rounded square steel blanks, forging and rolling. The square steel produced by rolling has rounded corners in width and height, and the size is controlled precisely. However, due to the small amount of def...

Claims

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Application Information

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IPC IPC(8): B21J1/06B21J13/06B21K27/00B21K29/00
CPCB21J1/06B21J13/06B21K27/00B21K29/00
Inventor 曹立军姚凤祥雷玉臣刘鹏宇牛震蒋伟斌赵艳荣杨云志唐刚翟书研
Owner 建龙北满特殊钢有限责任公司
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