A Double Size Flange Forging Process

A dual-size, flange technology, applied in manufacturing tools, other manufacturing equipment/tools, forming tools, etc., can solve the problems of raw material waste and reduced raw material utilization, and achieve the goal of increasing revenue, improving utilization, and reducing volume. Effect

Active Publication Date: 2022-04-05
章丘市普锐锻压有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: in order to protect the mold during die forging, the protrusions at the center of the upper and lower dies for forming the center hole do not contact each other, so the center hole of the flange after die forging is left with a continuous skin, After the need, punching step is required to punch off the continuous skin, which leads to the reduction of raw material utilization rate and waste of raw materials

Method used

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  • A Double Size Flange Forging Process
  • A Double Size Flange Forging Process
  • A Double Size Flange Forging Process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0033] Embodiment: a kind of double size flange forging process, such as figure 1 shown, including the following steps:

[0034] Step S1: cutting the round steel with a band sawing machine, and cutting the round steel into a plurality of bar blanks. The weight of each billet is 1.10 to 1.15 times the sum of the weights of the two qualified flanges. Through the relationship formula between density and mass, the bar blank of required mass can be cut according to the volume.

[0035] In order to improve the strength of the produced flange, the round steel is made of steel slag ingot remelted in the electroslag furnace. The steel ingot undergoes electroslag remelting to purify the metal and obtain an electroslag ingot with uniform and dense clean structure. The steel remelted by electroslag has high purity, low sulfur content, less non-metallic inclusions, smooth surface of steel ingot, clean and uniform compact, uniform metallographic structure and chemical composition, so the...

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Abstract

The invention discloses a double-size flange forging process, which belongs to the technical field of flange production. The key points of the technical solution include the following steps: step S1: cutting, cutting the round steel according to the weight, and cutting it into bar blanks; step S2 : heating; step S3: upsetting; S4: forming by die forging, placing the rough blank on the forging die, and then using a press to forge and press the rough blank into a rough forming blank, the rough forming blank includes a large flange blank and a small flange The blank, the large flange blank and the small flange blank are coaxially fixedly connected; step S5: separate the punching holes, and place the rough forming blank on the separation die to separate the large flange blank and the small flange blank; step S6: grind ring; step S7: rough turning, the lathe performs rough turning on the large flange blank and the small flange to form a large flange and a small flange. The invention has the effect of improving the utilization rate of raw materials.

Description

technical field [0001] The invention relates to the technical field of flange production, more specifically, it relates to a double-size flange forging process. Background technique [0002] Forging is a processing method that uses forging machinery to apply pressure to metal blanks to cause plastic deformation to obtain forgings with certain mechanical properties, certain shapes and sizes. Forging can eliminate defects such as as-cast porosity produced in the metal smelting process and optimize the microstructure. At the same time, due to the preservation of complete metal flow lines, the mechanical properties of forgings are generally better than castings of the same material. Forging is the most common way in flange production. [0003] At present, the invention patent with publication number CN108571629A discloses a manufacturing process of a new type of flange, which includes the following steps: material selection: select a steel plate with a thickness of 60-100mm for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P23/04B21J1/06B21J5/00B21J5/02B21J5/08B21J13/02B21D22/02B21D37/10B21H1/06
CPCB23P23/04B21J1/06B21J5/002B21J5/02B21J5/08B21J13/02B21D22/02B21D37/10B21H1/06
Inventor 李松柏中
Owner 章丘市普锐锻压有限公司
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