Henggong Precision applied for patents related to the rough boring tool's hole expansion method, analyzing vibration signals to adjust the rough boring tool's hole expansion feed to improve quality.
Patent details reveal technical direction
The State Intellectual Property Office announced an invention patent of Henggong Precision on June 16, 2026. Its specific name is "A rough boring tool enlarging processing method that guides a semi-precision guide bar boring tool", and the corresponding application number is CN2.4. This patent was jointly completed by five inventors including Wei Zhiyong and Gao Yunqiang, and the patent agency is Beijing Zhenzhi Bowen Intellectual Property Agency. The patent abstract shows that this technology is mainly aimed at optimizing the vibration problem during the hole expansion process of the rough boring tool. By analyzing the vibration signal data, the tool vibration abnormal coefficient is created, and ultimately the automatic adjustment of the feed parameter is achieved.
There is such a patent, the core of which is to divide the cutting feed time into multiple time periods. For these time periods, the fluctuation degree of the vibration signal and the kurtosis characteristics of the vibration signal are analyzed to determine what is called the first significant coefficient. At the same time, by analyzing the chatter characteristics of the signal in the frequency domain, and by exploring the degree of confusion of the frequency distribution of the above-mentioned signals, the goal of obtaining the first abnormal value is achieved, and then the relevant data are combined and calculated to calculate the value of the tool vibration abnormality coefficient. A method like this can monitor the unsteady state in real time during the boring process and provide data support for subsequent adjustment of processing parameters.
Corporate background highlights industry status
Henggong Precision was established on May 25, 2012. Its registered address and office are in Handan City, Hebei Province. This company was listed on the Shenzhen Stock Exchange on July 10, 2023. It is a high-quality enterprise in the field of domestic precision machining and iron castings. As a technology-driven enterprise, Henggong Precision has a significant competitive advantage in the industry. The main business activities include research and development, production and sales of precision machined parts and continuous cast iron parts.
From the perspective of the industry it belongs to, Henggong Precision is classified under the category of mechanical equipment, and mechanical equipment is further subdivided into general equipment. General equipment also includes the metal products sector, which involves many popular concepts such as reducers, small-cap growth, and robot concepts. What these concept sections represent is that the company has development potential in high-end manufacturing fields such as intelligent manufacturing and precision parts, and the application of new patents is a strong proof of its breakthrough in core technologies.
Market performance reflects profitability
In 2025, Henggong Precision achieved operating income of 1.101 billion yuan, ranking 43rd among 82 industry companies. Although this figure lags far behind the RMB 156.611 billion of the first-place CIMC Group and the RMB 20.05 billion of the second-place Leo Group, from a horizontal comparison level, the industry average is 3.722 billion yuan and the median is 1.138 billion yuan. Henggong Precision’s revenue level is basically close to the industry median, which shows that it has a stable living space in the market segment.
The first is net profit. In 2025, Henggong Precision achieved a net profit of 89.1204 million yuan, and its ranking in the industry was 34/82. Looking at the comparison, the first place Neway Group has a net profit of 1.621 billion yuan, and the second place CIMC Group has a net profit of 1.337 billion yuan. In this way, the gap between Henggong Precision and Henggong Precision clearly exists. However, the industry's average net profit is 124 million yuan, and the median is 63.1751 million yuan. Henggong Precision's net profit level has exceeded the median, which also shows that it has certain advantages in profitability efficiency, and the use of patented technology is expected to increase profit margins in further cases.
Analysis of main business composition
The main business of Henggong Precision is composed of continuous cast iron parts and hydraulic equipment parts. The data presented in 2025 show that continuous cast iron parts achieved revenue of 372 million yuan, accounting for 33.77% of boring processing vibration solutions , and hydraulic equipment parts revenue was 365 million yuan, accounting for 33.17%. The combination of these two extremely important businesses contributes almost 70% of the company's revenue, making it the company's most core source of revenue. In addition, the company also has other precision machined parts products, which also contribute a considerable proportion of revenue.
In terms of product structure, continuous cast iron parts are high value-added products in the field of precision machining. They belong to a certain category of products. Hydraulic equipment parts are also high value-added products in the field of precision machining. They also belong to this category of products and have very high requirements for machining accuracy and surface quality. Expansion of the rough boring tool is an indispensable key process in the processing of such products. Vibration problems will directly affect the finished product qualification rate, and the vibration problem will directly affect the processing efficiency . Boring processing vibration solution Boring processing vibration solution Henggong Precision applied for a patent related to the rough boring tool expansion method, analyzing the vibration signal to adjust the rough boring tool expansion feed to improve quality. This is the fundamental reason why Henggong Precision chose to patent layout in the field of boring processing vibration control.
Patented technology solves actual pain points
In the machining industry, boring vibration is a technical problem that has plagued enterprises for a long time. This vibration not only causes the roughness of the machined surface to deteriorate, but also accelerates tool wear and even causes workpiece scrapping. This patented technology of Henggong Precision can monitor the unstable state in the machining process in real time by establishing the abnormal coefficient of tool vibration, and adjust the feed parameters according to the measured conditions, so as to suppress the occurrence of vibration at the source.
Specifically, this method divides the cutting feed time into many short time windows, analyzes the vibration signal fluctuation degree and kurtosis characteristics in each time window one by one, and then combines it with the chatter characteristics in the frequency domain and the degree of frequency distribution chaos to comprehensively evaluate the tool vibration state. Such a multi-dimensional and multi-faceted analysis method is more accurate than traditional single parameter monitoring, and can detect potential problems in advance, thus improving the quality of finished products during rough boring tool expansion processing.
Industry application prospects are broad
As the manufacturing industry begins to transform in the direction of high-end and intelligence, in the field of precision machining, the requirements for machining accuracy and efficiency are becoming higher and higher. This patented technology of Henggong Precision is not only suitable for the production of its own continuous cast iron parts and hydraulic equipment parts, but can also be widely used in aerospace engines, automotive parts, engineering machinery and other fields, thus providing a systematic solution to the vibration problem of boring processing.
From a competitive perspective, most companies in the current industry still rely on experienced operators to regulate processing parameters through subjective judgment, lacking automated and intelligent vibration control methods. The implementation and application of this patent of Henggong Precision will help the company build a technological barrier, improve product competitiveness, capture more market share in the field of precision machining, and thereby reduce the gap between leading companies in the same industry.
Has your company encountered vibration during boring processing? You are welcome to share your solutions or troubles in the comment area. Like this article and forward it so that more colleagues in the industry can see this practical latest technology!
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