Tallsen hardware product system covers various furniture accessories such as hinge, drawer slide,handle, gas spring, buffer, sofa leg, table leg and clothes hook. Among them, monthly production capacity,hinge:6000000pcs, drawer slide:2500000sets, undermount drawer slides: 500000sets, gas spring:1000000pcs.

Abstract: The precision of NC machining for wooden door hinge assembly holes is crucial for ensuring the overall quality of the hinges. One of the main factors affecting machining accuracy is the thermal deformation error in the machine tool. This paper proposes a genetic algorithm-based thermal deformation error compensation model for the NC machining of wooden door hinge assembly holes, aiming to achieve higher precision CNC machining.
Traditionally, holes and grooves on wooden doors for assembling hinges are processed using general-purpose equipment such as routers and woodworking drilling and milling machines. However, the efficiency of these machines is low, equipment adjustment is difficult, production interchangeability is poor, and the processing accuracy is often inadequate. To overcome these challenges, a modern advanced processing technology, the numerical control processing method, is adopted. This method utilizes a special machine tool equipped with a multi-head drilling and milling device to process the hinge assembly holes and grooves based on CNC machining graphic parameters.
The main factor affecting the machining accuracy of this method is the quality of the machine tool itself, which refers to its processing capability. The thermal deformation error of the machine tool, accounting for approximately 28% of the total error, stands out as a key factor affecting machining accuracy. Therefore, developing a thermal error compensation method is essential for improving the precision of CNC machining for wooden door hinge assembly holes.
The CNC machine tool used for machining wooden door hinge assembly holes and grooves is shown in Figure 1. It is developed and manufactured by Northeast Forestry University. Driven in the Y direction, the machine tool is powered by a high-precision servo motor with a rapid response rate. The controller integrates various shapes of wooden door hinge assembly hole grooves, enabling modification of their size parameters through graphical dialogue. This machine tool can process not only hinge assembly hole grooves but also lock grooves, lock holes, and handle hole grooves. Figure 2 demonstrates the simulation model of the shape of a wooden door hinge assembly hole groove.
When machining a workpiece on a CNC machine tool, the relative displacement error between the tool and the workpiece determines the machining accuracy. Geometric error, thermal deformation error, load error, and tool error of the machine tool are the primary factors influencing the machining accuracy. To improve machining accuracy, two main methods are commonly employed: error prevention method (hardware method) and error compensation method (software method). The error prevention method focuses on improving the processing and assembly accuracy of machine tool components, reducing errors caused by load changes, and maintaining a constant temperature working environment. On the other hand, the error compensation method utilizes the programmability and intelligence of CNC machine tools to achieve "low-precision machine tools process high-precision workpieces" effect. With the increasing specialization and standardization of CNC machine tools, error compensation has become an integral part of enhancing their machining accuracy.
The thermal error compensation modeling method proposed in this paper is based on genetic algorithm. Genetic algorithm is a self-organizing and adaptive artificial intelligence technology that imitates the biological evolution process to solve extreme value problems. By simulating the genetic mechanism of nature and biological evolution theory, genetic algorithm establishes an efficient process search optimal solution algorithm. With a solid biological foundation, genetic algorithm proves valuable in solving non-linear and multidimensional space optimization problems.
To establish the thermal error compensation model for NC machining of wooden door hinge assembly holes and grooves, the genetic algorithm is first utilized. It starts by defining the objective function and optimizing the key points of thermal error compensation to obtain the optimal solution for the unknown coefficients of the objective function. Real number coding is used to represent the coefficients in decimal form, expanding the search space and improving accuracy. The thermal error model of the genetic algorithm can be written in the following form (Equation 2):
In the actual compensation process, thermal error compensation points are distributed on the tool mechanism of the spindle assembly 1 of the wooden door hinge assembly hole groove CNC machining machine tool. Key points for thermal error compensation are selected for optimization, and the corresponding compensation model analytical formulas for axial and radial thermal error compensation are obtained.
In conclusion, using the wooden door hinge assembly hole groove numerical control machining machine tool with thermal error compensation technology can effectively correct thermal deformation errors, ensuring high precision machining. This technology plays a crucial role in achieving high precision and efficiency in the CNC machining of wooden door hinge assembly holes and grooves.

The production of forged aluminum hinges involves several steps, including blank making, pre-forging, final forging, machining, and heat treatment. This article will provide a detailed explanation of each process to help you better understand the production process.
1. Blank Making:
The first step in the production of forged aluminum hinges is blank making. Due to the complex structure and large deformation of long wheelbase hinges, it is not feasible to use bar or profile to make billets as it would greatly increase the forging process. Therefore, a 125OkN die-casting machine is used to die-cast billets at a low speed. This method not only reduces the forging process but also ensures a uniform metal flow and continuous fiber. During die-casting, the die-casting machine's injection rate is controlled by adjusting the valve opening to inject the molten metal slowly. This allows the gas in the cavity to be discharged through the exhaust groove, effectively eliminating defects such as porosity and shrinkage inside the finished blank. X-ray real-time imaging is used to inspect the blank for any internal defects.
2. Pre-forging:
As a result of the low-speed die-casting process, the shape of the blank closely resembles that of the final forging. Thus, only two forgings are required to meet the size requirements. Pre-forging and final forging are carried out to achieve the desired shape. Pre-forging improves the dimensional accuracy of the workpiece and ensures complete filling at the corners of the outer surface. A mold is used on a punching machine to remove the excess material from the pre-forged forging. The pre-forging process includes heating, preservation, forging, and air cooling. This process helps achieve a dense internal structure, excellent surface quality, and stable dimensions.
3. Final Forging:
The pre-forged forging undergoes final forging to further enhance its dimensional accuracy and surface quality. The final forging process completely fills the cavity and ensures a dense internal structure. This is achieved by heating the pre-forged forging, preserving the temperature, forging it with a press, and finally air cooling it. The result is a forging that meets the required size specifications and exhibits excellent mechanical properties.
4. Machining:
After the forging process, the forged aluminum hinge is subjected to machining operations. A special jig is used to process the mounting holes, ensuring precise dimensions and alignment with other components.
5. Heat Treatment:
The final step in the production of forged aluminum hinges is heat treatment. The drawing specifications dictate the use of 6061-T6 aluminum alloy. T6 treatment involves a solution treatment and artificial aging process. For wrought aluminum 6061, the solution treatment is carried out at a temperature of (5405) for a duration of 1/6-1 hour. After the solution treatment, the forging is cooled in cold water. The artificial aging treatment is then performed at a temperature of (1755) for 6-10 hours. This heat treatment process enhances the mechanical properties of the forging, increasing its tensile strength to over 280MPa, thereby meeting the requirements for its intended use.
In conclusion, the production of forged aluminum hinges involves several crucial steps, including blank making, pre-forging, final forging, machining, and heat treatment. Each process is carefully carried out to ensure dimensional accuracy, surface quality, and mechanical properties of the final product. By following these production procedures, manufacturers can produce high-quality forged aluminum hinges that meet the required specifications and satisfy customer demands.

Every procedure in black kitchen faucet production has to comply with the relevant production standards. Tests for quality and standards for production tend to be more rigorous and controlled in its production. The Production Standard helps manufacturers to measure their productivity.


The accumulation of experience in black kitchen faucet industry promotes the healthy development of Tallsen.black kitchen faucet is of well-chosen materials and fine workmanship. It has high quality, a long service life, and a wide application. It can be used in many places such as living room, kitchen, bathroom, and bedroom.Our QC team sets up a professional inspection method to effectively control its quality. Tallsen has been growing rapidly into a leader in black kitchen faucet and related equipment.




Our business philosophy is to win the market through quality and service. All of our teams are working hard to create value for customers, no matter helping cut production costs or improving product quality. We hope to win their trust by doing these.