Closed-Die Wheel Forging Line for Flash-Free Aluminum Forming
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Solution Overview
Problem
Conventional wheel production processes face challenges in achieving high volume accuracy, shape reasonability, and efficient metal material utilization, requiring stringent temperature control and equipment capabilities, which hinders the modification of automobile hub production lines and manufacturing efficiency.
Innovation Solution
An aluminum alloy wheel automatic closed die forging production line is introduced, comprising a series of machines and manipulators for precise processing stages, including sawing, heating, forging, and heat treatment, with a designed die system for closed die forging that eliminates flash and optimizes material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If closed die forging is adopted to eliminate flashes and increase material utilization, then metal material utilization rate is improved, but requirements for volume accuracy, shape reasonability, and temperature control become more stringent
Solution Approach 1:
The patent applies preliminary action by implementing a pre-heating process before closed die forging. The heating furnace pre-heats the metal blank to the optimal temperature range (450-550℃) before forging, ensuring the material has appropriate plasticity and flow characteristics. This preliminary thermal preparation allows the metal to fill the closed die cavity completely and uniformly, achieving high volume accuracy and shape reasonability while maintaining high material utilization without flashes.
2Loss of substance
If closed die forging is adopted to eliminate flashes and increase material utilization, then metal material utilization rate is improved, but temperature control requirements become more stringent
Solution Approach 1:
The heating furnace performs preliminary heating of the metal blank to the optimal temperature range (450-550℃) before closed die forging. This pre-heating ensures uniform temperature distribution and appropriate material plasticity, reducing the risk of temperature-related defects during forging while maintaining high material utilization.
Solution Approach 2:
The patent implements temperature monitoring and control during the heating and forging processes. Temperature sensors and control systems continuously monitor the metal blank temperature and adjust heating parameters to maintain the optimal temperature range, ensuring consistent forging quality and high material utilization without excessive temperature control stringency.
3Productivity
If automatic closed die forging production line is implemented to improve manufacturing efficiency, then productivity is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple functions into an integrated automatic closed die forging production line. The system combines the heating furnace, hydraulic pressing machine with closed dies, and forming operations into a coordinated automated sequence. This integration eliminates manual operations between steps, achieves high productivity through continuous automated processing, and manages device complexity through systematic coordination of components.
Solution Approach 2:
The automatic production line implements self-service through automated material handling, positioning, and process control. The hydraulic pressing machine automatically controls the forging parameters, the closed dies self-align with the blank, and the system autonomously completes the entire forging cycle without continuous human intervention, improving productivity while keeping operational complexity manageable.
4Shape
If closed die forging with complex shaping is adopted, then product shape quality is improved, but equipment beating ability requirements increase
Solution Approach 1:
The heating furnace performs preliminary heating to optimize material plasticity before forging. This thermal preparation reduces the force required during closing die forging by making the metal more pliable, enabling complex shapes to be formed with lower equipment beating ability requirements while maintaining high shape quality.
Solution Approach 2:
The patent employs dynamic control of the hydraulic pressing machine during closed die forging. The pressing speed and force are dynamically adjusted based on the deformation stage and material flow requirements, optimizing the forming process for complex shapes while minimizing peak forces and equipment beating ability requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution enhances the mechanical and physical properties of the wheel, simplifies the pressing process, reduces secondary machining needs, improves safety and efficiency, and facilitates high-automation production, effectively addressing the limitations of conventional methods.
Implementation Method 1
the bar heating furnace is used for preheating the bars, and the temperature can be controlled at 470-500 DEG C.
Implementation Method 2
the intermediate heating furnace is used for carrying out intermediate heating of closed die forging of the wheel blank, and the temperature can be controlled at 470-500 DEG C.
Implementation Method 3
the heat treatment furnace is used for treating the temperature of the wheel blank, and is a continuous operation furnace, and the temperature can be respectively maintained at three temperature ranges including 470-500 DEG C., 70-100 DEG C. and 150-180 DEG C.
Data Source
AI summary
A wheel automatic closed die forging production line includes a sawing machine, a first transfer track, a bar heating furnace, a first manipulator, an oscillating rolling machine, a second manipulator, a primary forging hydraulic machine, an intermediate heating furnace, a third manipulator, a finish forging hydraulic machine, a wheel transfer block, a fourth manipulator, a cutting, expanding and punching hydraulic machine, a second transfer track, a spinning machine, a fifth manipulator, a third transfer track, a heat treatment furnace, a fourth transfer track, a machining unit, a sixth manipulator and a fifth finished product track, and can improve mechanical and the physical properties of the wheel product, the wheel forging effect and the yield. Aluminum and magnesium alloy wheel compression molding is realized, reducing cost, time and labor for secondary machining and reshaping, and improving production safety and efficiency.