The automotive industry has experienced rapid growth, leading to increasingly stringent demands on production equipment. For manufacturers like Dongfeng Nissan, achieving high efficiency, superior performance, and exceptional reliability is essential to meet the needs of the market. The company aims to deliver cutting-edge and reliable driving experiences to Chinese consumers through advanced technology and world-class manufacturing. As Mr. Gao Zhenghao, Deputy Minister of the PT Department at Dongfeng Nissan Passenger Vehicle Company, explained, "Our main focus is always on providing customers with the most valuable products and services, enabling them to enjoy a rich and humanized mobile lifestyle. Our future demand will also center around producing the most valuable products. Therefore, when selecting production equipment, high quality and high efficiency are the fundamental criteria for Dongfeng Nissan."
**Cost-effective automated machine tools offer efficient solutions**
Dongfeng Nissan’s strong position in the passenger car market and the intense competition within it have made its requirements for production equipment very rigorous. "We first contacted EMAG in 2011, and since then, we decided to use their laser welding equipment mainly because of its excellent cost-performance," recalled Mr. Gao Zhenghao.
It is reported that Dongfeng Nissan ultimately chose EMAG's ELC 160 machine tool, which is primarily used for press fitting, welding, and flaw detection of three gears (JR1/2/4) in the gearbox. The welding diameters are 61.565 mm for the 1/2 gear and 55.985 mm for the 4 gear, using materials such as 20MC5 and 27MC5. The design requires a cycle time of 0.85 minutes, while the actual cycle time has been reduced to 0.7 minutes. Currently, the overall efficiency of a single machine reaches 90%. “This was a new project. Before choosing EMAG's machine tools, our main challenge was how to integrate the three processes—press fitting, welding, and flaw detection—into one piece of equipment. Initially, we were considering purchasing three separate sets of equipment,†said Mr. Gao Zhenghao. “EMAG solved this problem perfectly.â€
Mr. Gao Zhenghao further explained that, for example, in the welding process of the first gear, the ELC 160 machine tool achieved multi-functionality, significantly reducing costs. First, it cut down on capital investment and floor space by replacing three machines with one. It also reduced staff input by 0.5 employees per shift. Second, the ELC 160 machine tool ensured high-quality welding by optimizing parameters such as interference, welding power, and speed ratio. Moreover, there is no need for post-welding turning, saving time and improving production efficiency.
"Having modern production equipment is a crucial part of implementing Dongfeng Nissan’s strategy," Mr. Gao Zhenghao said. "EMAG equipment offers excellent stability, ensuring high-quality products. At the same time, the high level of automation reduces labor costs and operator workload." It is understood that the ELC 160 integrates the workpiece loading/unloading system and the laser welding process, using CNC joint stamping technology to press the coupling body. All quality-related parameters are controlled by CNC and can be restored. During welding, the CNC can automatically identify the welding object, and during testing, it can perform individual inspections of different workpieces, achieving a highly automated production process. This not only reduces labor costs but also ensures high production efficiency and product quality.
The EMAG ELC 160 machine tool has realized a multi-purpose machine, reducing the capital investment and floor space of the three equipments, and greatly saving the cost for Dongfeng Nissan.
Forward Plate Compactor
Vibrating plate compactors are mainly suitable for materials with less cohesion and friction between compacting particles, such as river sand, gravel and asphalt. The main working parameters of the vibrating plate compaction are: the bottom area of the working plate, the mass of the whole machine, the excitation force and the excitation frequency. Under normal circumstances, the bottom plate area of the same type of plate is about the same, so the performance of the plate rammer is mainly affected by the quality, excitation force and excitation frequency of the whole machine. The excitation force is mainly used to maintain the forced vibration of the tamped material; The excitation frequency affects the tamping efficiency and compaction degree, that is, under the same excitation force, the higher the excitation frequency, the higher the tamping efficiency and compactness.
Plate Compactor Machine,Forward Type Plate Compactor,Road Plate Compactor,compactor vibrator
Vibropac Machinery Co.,Ltd , https://www.vibropac-power.com
