Forging Device Helical Blade Back Pressure Plate
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Solution Overview
Problem
Forging devices for twisted shapes face challenges in achieving high-quality results due to complex shaping hole designs, leading to unfilled portions and increased production costs from complex back pressure mechanisms.
Innovation Solution
A forging device with a helical blade portion in the shaping hole and a back pressure generation mechanism that includes a rotating back pressure plate guided by the blade, simplifying the structure and reducing costs by eliminating the need for rotating components in the back pressure transmission mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a complex back pressure applying mechanism is employed to apply appropriate back pressure to the metallic material, then the quality of the forged article is improved, but the device structure becomes complicated and production cost increases
Solution Approach 1:
The back pressure plate is merged with the blade portion by forming the back pressure plate as an integrated part of the die, eliminating the need for separate back pressure applying mechanisms. This integration maintains the necessary back pressure function while significantly simplifying the overall device structure and reducing production costs
Solution Approach 2:
The back pressure plate serves multiple functions: it applies back pressure to the metallic material, guides the flow of metal, and forms the helical groove pattern on the forged article surface. This multi-functionality eliminates the need for additional separate mechanisms, simplifying the device while maintaining high-quality output
2Manufacturing precision
If a complex back pressure applying mechanism is employed to apply appropriate back pressure to the metallic material, then the quality of the forged article is improved, but production cost increases
Solution Approach 1:
The back pressure plate is merged with the blade portion by forming the back pressure plate as an integrated part of the die, eliminating the need for separate back pressure applying mechanisms. This integration maintains the necessary back pressure function while significantly simplifying the overall device structure and reducing production costs
Solution Approach 2:
The die structure itself provides the back pressure function through its integrated back pressure plate and blade portion design, eliminating the need for external or additional mechanisms. The die serves itself by incorporating all necessary functions into its basic structure, reducing manufacturing complexity and cost
3Shape
If the shaping hole has a complex twisted shape with helical blade portions, then the forged article can achieve the desired twisted form, but unfilled portions are likely to occur without back pressure
Solution Approach 1:
The back pressure plate is positioned and configured to apply preliminary back pressure to the metallic material before and during its flow into the complex shaping hole. This preliminary counter-action prevents the material from flowing too quickly or unevenly, ensuring complete filling of the twisted shape without unfilled portions
Solution Approach 2:
The back pressure plate acts as an intermediary element between the punch and the metallic material, controlling and regulating the material flow into the complex shaping hole. It mediates the pressure application to ensure uniform and complete filling of the twisted geometry
Data Source
AI summary
A forging device capable of producing a high-quality forged article while simplifying the structure is provided. The forging device of the present invention includes a punch 1, a die 2 having a shaping hole 22 and a helical blade portion 23 formed on an inner peripheral surface of the shaping hole, a back pressure generation mechanism 15, and a back pressure transmission mechanism. The back pressure transmission mechanism includes a rotation-side transmission member having a back pressure plate 40 and a non-rotation-side transmission member. The back pressure plate 40 is arranged in the shaping hole 22 in a fitted manner. When a forging material W1 is driven into the shaping hole 22 and the back pressure plate 40 is pressed downward by the metallic material, the back pressure plate 40 is guided by the blade portion 23 of the shaping hole 22 and thereby descends while rotating about the axis and a back pressure by the back pressure generation mechanism 15 is applied to the metallic material via the back pressure transmission mechanism.