Forging Housing Door Layout for Hot Die Temperature Stability
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Solution Overview
Problem
Existing forging apparatuses face challenges in maintaining uniform high temperatures for Ni-based and Ti-based alloys during hot forging, leading to temperature fluctuations and die oxidation, which reduces forging efficiency and shortens die replacement cycles.
Innovation Solution
A forging apparatus with a housing that surrounds the upper and lower dies and heating mechanism, featuring a door to maintain a closed environment during material charging and forging, and a gas supply mechanism to reduce oxygen concentration, ensuring consistent die temperatures and preventing oxidation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the upper and lower outer frames and heating portions are in the open condition to allow material charging, then the charging operation is simplified, but the temperature of the forging space and material decreases, and the dies oxidize
Solution Approach 1:
The outer frame is divided into a fixed frame and a movable door portion. The door can be opened independently to allow material charging while the rest of the frame remains closed to maintain temperature, resolving the contradiction between ease of charging and temperature maintenance.
Solution Approach 2:
The heating portions are positioned to locally heat the dies and forging space. The door is designed to open only in the region where material charging is needed, while the heating portions continue to maintain temperature in the closed regions, allowing localized access without compromising overall temperature.
2Ease of operation
If the upper and lower outer frames are in the open condition for material charging, then the charging is easier, but the dies are exposed to outside air and oxidize easily
Solution Approach 1:
The outer frame is segmented into a fixed frame and a movable door. The door opens only when material charging is needed, minimizing the time dies are exposed to air. The fixed frame remains closed to protect dies from oxidation while allowing convenient material loading through the door.
Solution Approach 2:
The door is kept closed during the forging process to prevent die oxidation. Material charging is performed quickly through the door opening before the door is closed again, minimizing exposure time and preventing oxidation during the critical forging operation.
3Temperature
If frequent heating operations are performed to increase forging space temperature, then the temperature is maintained, but the temperatures of the upper and lower dies fluctuate frequently
Solution Approach 1:
The heating portions continuously heat the dies during the closed-door operation. This continuous heating maintains stable die temperatures without frequent fluctuations, while the door remains closed to trap heat in the forging space, eliminating the need for frequent re-heating operations.
4Ease of operation
If the door is opened frequently for material charging, then the charging operation is flexible, but the temperature of the forging space drops
Solution Approach 1:
The outer frame is divided into a fixed frame and a movable door. The door can be opened quickly for material charging while the fixed frame and heating portions remain in place, minimizing heat loss and reducing the time needed for subsequent heating operations.
Solution Approach 2:
Material is charged through the door opening before the door is closed. The heating portions are already in position and can immediately begin or continue heating once the door is closed, eliminating the need for lengthy re-heating periods and reducing overall cycle time.
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 configuration prevents temperature drops, maintains uniform die temperatures, and extends die replacement cycles by reducing oxidation, thereby enhancing forging efficiency and product quality.
Implementation Method 1
a heating mechanism configured to be able to heat the upper and lower dies
Implementation Method 2
a door configured to be able to open and close the charging port of the housing body
Data Source
AI summary
A forging apparatus and a forged product manufacturing method aim to prevent decrease in the temperature of a forging space and the temperature of a forging material, efficiently maintain the uniformity of the temperatures of upper and lower dies, and improve forging efficiency. In the forging apparatus and the forged product manufacturing method according to the present invention, the upper and lower dies are heated by a heating mechanism in a housing in which a charging port of an integrally formed housing body is closed by a door, the upper and lower dies are moved relatively in a facing direction of the upper and lower dies, the heating mechanism is moved relatively in the facing direction with respect to at least one of the relatively moving upper and lower dies, and whereby the forging material is forged between the upper and lower dies. Furthermore, the forged product manufacturing method is used to manufacture a forged product from the forging material.