In modern manufacturing, as a furniture product, metal chairs are very common.. However, many people may not know that behind a seemingly simple metal chair, there are many complex machines and processes involved. This article will introduce these processes and the required machines in detail, revealing the technical secrets behind the production of metal chairs.
From raw materials to forming: cutting and bending process
The production of metal chairs starts with the preparation of raw materials. Generally speaking, the materials used to make metal chairs are mostly steel, aluminum or stainless steel, which have good strength and durability and can meet the needs of furniture design.
1、Cutting machine: laser cutting machine
First, the raw metal material needs to be cut into specific sizes and shapes. The laser cutting machine is the main equipment in this process. The laser cutting machine melts and evaporates the metal through a high-power laser beam, which can achieve high-precision cutting and is suitable for complex shapes and detail processing. Laser cutting machines can be divided into several categories: laser cutting machines, laser pipe cutting machines, and integrated plate and tube laser cutting machines. The more common ones are high-speed automatic three-dimensional laser pipe cutting machines, "Tornado" advanced pipe cutting machines, single table laser cutting machines, double exchange laser cutting machines,tube sheet integrated laser cutting machines, and enclosed fiber laser cutting machines. The choice of different models of laser cutting machines depends on factors such as material type, material thickness, cutting speed and cost.
2、Bending equipment: pipe bending machine
After cutting, the metal material needs to be bent into the frame and support structure of the chair. The pipe bending machine is the most commonly used equipment. Pipe bending machines include single-head hydraulic pipe bending machines, double-head pipe bending machines, CNC pipe bending machines, pipe end forming machines, etc.For the arc-shaped structure of the chair legs or chair backs, the pipe bending machine is an ideal choice.
Connection and assembly: welding and fixing process
After completing the cutting and bending of metal parts, the next key step is to connect these parts together to form the overall frame of the chair. This process mainly relies on welding technology and other fixing processes.
1、 Welding technology: laser welding machine and laser welding robot
As the main method of connecting metal parts, welding requires a laser welding machine or a laser welding robot. The laser welding machine has a fast welding speed, which is 2-10 times that of traditional welding processes. It is easy to operate and has no burrs. Laser welding robots are indispensable equipment in modern manufacturing. They can achieve high-speed and high-quality welding, improve production efficiency and product qualification rate, intelligent operation, flexibility and reliability, and can weld in any space, not limited to plane welding.
2、Fixing device: riveting machine and bolt fastening system
In addition to welding, some parts also need to be connected by riveting or bolting. The riveting machine is used to tightly combine two or more metal plates to form a solid structure. The bolt fastening system uses a mechanical device to tightly tighten the bolts and nuts to ensure the stability of the connection.
Surface treatment and assembly: a combination of beauty and durability
After completing the frame assembly of the metal chair, the next step is surface treatment. This step is not only for beauty, but also to enhance the corrosion resistance and durability of the metal chair.
1、 Surface treatment: spraying and electroplating technology
The surface treatment of metal chairs usually includes two main processes: spraying and electroplating. Spraying is to spray the paint evenly on the metal surface through a high-pressure spray gun to form a protective film.Electroplating is to form a thin coating on the metal surface through an electrochemical reaction, which is usually used to improve the corrosion resistance and beauty of the metal.
2、 Final assembly: automated assembly line and quality inspection
After completing the surface treatment, all parts of the metal chair will enter the final assembly stage. After assembly, the quality inspection equipment will strictly check the stability, load-bearing capacity and surface quality of the chair to ensure that every metal chair leaving the factory meets the design standards.
Conclusion: Technology-driven manufacturing future
From the selection of raw materials to the delivery of the final product, making a metal chair requires the cooperation of multiple machines and process flows. The application of high-tech equipment such as laser cutting machines, pipe bending machines, laser welding robots, and spraying equipment makes the production of metal chairs more efficient and precise.
By continuously introducing new technologies and optimizing production processes, the production of metal chairs not only meets the market demand for high-quality products, but also drives the entire furniture industry towards a more environmentally friendly and efficient direction.