A Comprehensive Analysis Of The Causes Of Bending In Metal Furniture Parts And Flattening Technologies
Release time：2025-12-21
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Due to their durability and modern aesthetic characteristics, metal furniture is widely used in household and commercial scenarios. However, the problem of bending and deformation of parts often troubles production and use. This article systematically analyzes the causes of bending in metal parts and solutions from material properties, processing technology to correction techniques.
I. Core Causes of Bending in Metal Parts
1. Influence of Material Properties
Mechanical properties such as the elastic modulus and yield strength of metals directly determine their anti - deformation ability. For example, materials with a low elastic modulus are more likely to undergo plastic deformation after being stressed. In addition, the anisotropy of grains in the microstructure can lead to uneven stress distribution, increasing the risk of bending.
2. Defects in Processing Technology
Improper operations in heat treatment, welding, cutting and other processes may cause an imbalance in internal stress. For example, the high temperature during welding causes local metal to expand, and uneven shrinkage after cooling forms residual stress, which leads to bending deformation over a long - term.
3. Damage during Logistics and Installation
Collisions during transportation, stacking pressure or external force impacts during installation may cause local overloading of metal parts, resulting in irreversible deformation.
4. Environmental and Usage Factors
Long - term exposure to extreme temperature and humidity environments or repeated loading will accelerate metal fatigue, reduce structural stability and cause progressive bending.
II. High - efficiency Correction Technology: Application of Flattening Machines
Flattening machines can precisely straighten metal sheets or structural parts through high - precision sensors and intelligent control systems, with significant technical advantages:
- Precise Regulation: With a multi - roll pressure system, the flattening accuracy can reach 0.01mm, suitable for processing medium - thick sheets over 1mm.
- Improved Efficiency: Compared with traditional manual correction, automated operation reduces labor costs by more than 80% and avoids secondary damage.
- Enhanced Appearance: It eliminates creases and irregular deformations, restores the flatness of parts, and enhances the product's aesthetic craftsmanship and market competitiveness.
III. Innovative Materials and Structural Design
1. Flexible Metal Tubes
Flexible metal tubes made of corrosion - resistant alloys and insulated resin coatings have both tensile strength and bending flexibility, suitable for complex wiring scenarios and reducing the risk of installation damage.
2. High - strength Hinge Materials
The hardness of the new amorphous alloy (metallic glass) is 2.5 times that of titanium alloy. Its anti - fatigue properties can effectively reduce the crease problem of folding screen devices and extend their service life.
3. Composite Fiber Profiles
The fiber composite materials formed by pultrusion have a better strength - to - weight ratio than traditional metals, and have corrosion - resistant and heat - insulating properties. They are suitable for the manufacture of lightweight drive shafts, reducing vibration and noise.
IV. Key Points for Process and Equipment Selection
- Matching Material Thickness: The flattening machine needs to select the number of rollers and pressure parameters according to the sheet thickness (e.g., 1 - 5mm) to avoid overloading or insufficient flattening.
- Optimizing the Processing Flow: Introduce high - frequency heat treatment or laser cutting technology to reduce residual stress in processing and prevent bending from the source.
- Environmental Adaptation: In extreme climate regions, temperature - and humidity - resistant coating materials should be selected, and stress detection and maintenance should be carried out regularly.
V. Future Trends: Combination of Materials and Intelligent Technologies
Ceramic alloys achieve 39.9% tensile plasticity at room temperature through "dislocation control", with both biological safety and high strength. The adaptive flattening system combined with AI algorithms can analyze material deformation data in real - time and dynamically optimize correction parameters, promoting metal processing towards high precision and low energy consumption.
