Thin walled parts are widely used in auto parts manufacturing and other industries. High efficiency and high precision in the cutting of thin walled parts is the cornerstone of modern high tech industry, highlighting the core competitiveness of the manufacturing industry while reflecting the manufacturing level of the country.
To achieve authentic results in thin wall machining, it’s necessary to have a deep understanding of the material properties and machining parameters that influence the process. This custom CNC turning service includes factors such as tool selection, cutting speeds, feed rates, and tool path optimization.
Enhancing CNC Machine Performance
The use of cutting thin walled parts, must solve two major problems of clamping positions and manufacturing accuracy. On one hand, to determine the clamping position. When using machine tools for workpiece cutting, not only ensure the reliability of workpiece clamping, but also to ensure the accuracy of thin- walled parts. If the workpiece is too thin and the three jaws chuck can’t be installed.
In the precision of thin walled parts, it is important to analyse the position of the workpiece and clamping equipment in detail and explore the size and direction of the external load that may lead to deformation of the workpiece and design special fixtures suitable for machining.
Determining Reasonable Cutting Parameters and Technical Solutions
In the process of CNC machining and manufacturing of thin walled parts, select the cutting speed, feed rate, feed volume and so on. On the basis of checking machining accuracy, the vibration and resonance of the tool should be reduced as much as possible, taking the material of the tool and the quality of the cutting edge. In order to check the accuracy and quality of the part, the material characteristics of the workpiece and tool stiffness should also be considered.
In technology, the production process is divided into multiple steps, and the specific process parameters, tools, equipment, etc. for each step is described. For the CNC machining of thin-walled parts, it is important to select the proper machining path according to its complexity, so that the production efficiency and quality can be enhanced. In the development of the technical path, pay attention to the in-between processes in production, and carefully analyse the problems in production.
Ensuring Dimensional Accuracy
Thin-walled parts with poor rigidity, easy to deform after the force in the CNC machining process, dimensional precision is difficult to assure. Thin-walled parts machining generally uses the process path that usually includes positioning with internal clamping, external clamping and overall fixture clamping.
Preventing Deformation and Vibration
To prevent deformation and vibration of thin-walled parts, the following measures can be taken. On the one hand, choose a reasonable amount of cutting. When machining thin-walled parts, one should try to avoid generating large vibration, reduce the impact on the accuracy of the parts, surface roughness and service life, specifically through the selection of a small depth of cut, small feed, low cutting speed method to achieve. On the other hand, the use of clamping when processing thin-walled parts, so that the workpiece and tool is in a relatively stable state, to prevent deformation and vibration of the workpiece. The clamping force should generally not be greater than the strength limit of the part material.
Optimising and Adjusting Clamping Schemes for CNC Machining of Thin-Walled Parts
In the CNC machine process, it could effectively optimise and adjust the clamping scheme for CNC machining of thin-walled parts and improve the internal load and clamping force of thin-walled parts. The large thin-walled parts are less rigid, it is necessary to improve its support bearing force to ensure that the machining strength of thin-walled parts is improved.
It is necessary to contemplate the use of clamping cards to directly assist the clamping process, and analyse the content of the workpiece based on different stress and deformation, optimise the clamping ratio of the thin-walled parts, and form an auxiliary clamping bracket and retaining ring. Throughout the process, it is necessary to ensure that the level of stress support for thin-walled parts processing is increased and the clamping programme is optimised.
So these all strategies to improve CNC quality of thin- walled machining parts could be helpful.
