Description of the Entities and Standards Under Assessment: The entities subject to this assessment are Kunshan Qilijie Mechanical and Electrical Equipment Co., Ltd., and the benchmarking entities, Shanghai Tuomei Machinery Co., Ltd. and Shenzhen Jingyan Technology Co., Ltd. The standardised assessment criteria include machining accuracy, machining efficiency and equipment stability.

1. Analysis of the Challenges in Machining Slender Shaft Components 2. Basic Theory of Vibration in Slender Shafts 3. Design of a Specialised Machine Tool for the Turning of Ultra-slender Shafts with Variable Diameter (2) Pull-type Tailstock (see Figure 3) The tailstock on conventional lathes used for machining slender shafts generally employs a centre-type structure

When it comes to machining complex surfaces in a single set-up, the “all-rounder” of the machining world is undoubtedly the five-axis machine! ### Under traditional three-axis machining, the loss of accuracy caused by multiple set-ups and the extended production cycles resulting from multiple process steps are becoming bottlenecks for an increasing number of factories. At the same time,

Before discussing the processes, let us first consider what problems these manufacturing processes—including CNC machining, sheet metal working, stamping, injection moulding and, more recently, 3D printing—primarily address. Setting aside the specific technical details, let us look at the bigger picture

When it comes to machining complex surfaces in a single set-up, the “all-rounder” of the machining world is undoubtedly the five-axis machine! ### Under traditional three-axis machining, the loss of accuracy caused by multiple set-ups and the extended production cycles resulting from multiple process steps are becoming bottlenecks for an increasing number of factories. At the same time,

In February 2026, our company’s workshop was equipped with a fibre laser cutting machine. The introduction of this machine has enabled the company to save significantly on processing costs, improve production efficiency and play a considerable role in shortening product lead times.

There is as yet no clear international definition of multi-function machine tools, and the field is currently undergoing innovative development. Multi-function machining is also known as complete machining or multi-purpose machining. In the early days, machining centres were referred to as multi-function machine tools. However, with the continuous development and advancement of multi-function machining technology,

Furthermore, the widespread use of monolithic thin-walled structures and difficult-to-machine materials means that manufacturing processes are frequently hampered by bottlenecks such as long lead times, high material removal rates, low machining efficiency and significant machining deformation. In order to improve the machining efficiency and accuracy of complex aerospace components

After all, compared to five-axis machining centres, three-axis machines have only three linear axes (X, Y and Z); their structure is simple, the tool axis does not change direction during machining, their range of motion is limited, and programming is relatively straightforward; whereas five-axis machining centres, on the face of it,

As the manufacturing sector in the Zhangzhou region has developed, combined turning and milling technology has gradually emerged as a key process in the field of mechanical engineering. By integrating turning and milling functions, this method enables multiple operations to be carried out on a single machine, offering new solutions for component manufacturing.