Design Empowerment: The Efficient Processing Code of Rough Boring Tools

In the precision system of mechanical processing, the efficient performance of rough boring tools is not accidental, but comes from every well-thought-out design detail. The tool bar of rough boring tools is the supporting skeleton of the entire tool. Its primary design goal is to ensure stability during high-load cutting. To achieve this goal, the selection of tool bar materials has been strictly screened, and high-strength alloy steel is usually used. This material not only has sufficient rigidity to resist the radial and axial forces generated during the cutting process, but also has good toughness to avoid breakage due to instantaneous impact. The cross-sectional shape of the tool bar has also been optimized, mostly using round or square shapes. The larger cross-sectional area can effectively disperse stress and reduce vibration. During the processing process, when the tool contacts the workpiece and generates huge cutting force, the stable tool bar structure can control the vibration amplitude within a very small range, avoid uneven cutting caused by vibration, thereby ensuring the continuity and stability of the cutting process, and providing a basic guarantee for efficient processing. The length design of the tool bar also matches the processing requirements. The reasonable length can meet the needs of processing holes of different depths and maintain the stability of the overall structure.​

Direct impact of cutter head design on cutting efficiency​
As the part of rough boring tools that directly participates in cutting, the exquisiteness of its design is reflected in the precise control of details such as cutting angle and blade layout. The installation angle of the blade is one of the key factors affecting cutting efficiency. The size of the rake angle determines the sharpness of the cutting edge and the size of the cutting force. A reasonable rake angle can make the cutting process lighter and reduce cutting resistance; the back angle can reduce the friction between the blade and the machined surface of the workpiece and reduce energy loss. The layout design of the blade also hides mysteries. The blade distribution method of multi-blade rough boring tools is a typical example. The arrangement of the blades on the cutter head follows a certain rule to ensure that each blade can evenly share the cutting load during cutting, and avoid excessive wear of a single blade due to excessive force. This layout greatly increases the amount of metal removed per unit time during the cutting process. Compared with single-blade tools, it does not require multiple round trips to complete the same amount of work, significantly improving cutting efficiency. The positioning structure of the cutter head is also very precise. The blade is fixed by a special clamping device to ensure that it will not loosen during high-speed rotation and severe vibration, ensure the accuracy of the cutting position, and avoid affecting the processing effect due to blade displacement. ​

Design considerations for blade selection and cutter head adaptability​
As a component that directly contacts the workpiece, the adaptability of its material and the cutter head is an important link in the design. The selection of blade material needs to be combined with the hardness, toughness and other characteristics of the processed material. For example, when processing brittle materials such as cast iron, blades with good wear resistance are selected; when processing tough materials such as steel, the impact resistance of the blade is emphasized. The structural design of the cutter head needs to provide suitable installation interfaces for different types of blades to ensure that the blade can be installed stably and replaced conveniently, reducing the processing time delayed by changing the blade.

How does overall structural coordination improve processing continuity​
The efficiency of rough boring tools depends not only on the excellent design of individual components, but also on the coordination between the components. The stable support of the tool bar provides a platform for the precise cutting of the tool head, and the reasonable layout of the tool head makes full use of the stable conditions provided by the tool bar. During the cutting process, the tool bar delivers the cutter head to the processing position accurately, and the blade of the cutter head cuts according to the preset trajectory. The cutting force generated is transmitted to the tool bar through the cutter head, and then dispersed to the machine tool spindle by the tool bar. The entire force transmission path is smooth and stable, reducing energy loss. The chip removal groove design of the tool is also coordinated with the overall structure. The reasonable groove type can timely discharge the chips generated by cutting, and avoid the accumulation of chips in the cutting area to affect the processing accuracy and efficiency. ​

The expansion effect of design details on processing adaptability ​
The design of rough boring tools is also reflected in the adaptability to different processing scenarios, which also comes from the optimization of detail design. The connection between the cutter head and the tool bar also adopts a modular design. When the cutter head is worn or needs to be replaced with a different type of cutter head, it can be quickly disassembled and replaced, which improves the versatility and use efficiency of the tool. The surface of the tool is usually coated. This coating can not only improve the wear resistance of the tool, but also reduce the friction coefficient during the cutting process and reduce the cutting temperature, so that the tool can still maintain efficient cutting performance in a more severe processing environment. These detailed designs jointly expand the application range of rough boring tools, enabling them to perform efficiently under a variety of processing conditions, further confirming the core position of design as the cornerstone of efficient processing.