The tube hydroforming technology is a rapid-forming technique in multi-way tube integrated and lightweight manufacturing. The forming performance of the multi-way tube under this technology was comprehensively analyzed and summarized in this paper. Firstly, the influencing factors, such as axial feed loading path and internal pressure, forming friction, and die transition fillet, in the process of multi-way tube forming were analyzed and summarized. Secondly, the optimization method of the multi-way tube forming performance in hydroforming was analyzed. Finally, the reduction of hydraulic expansion costs and the development of new hydroforming technologies were expounded. © Published under licence by IOP Publishing Ltd.

As E-commerce and online shopping advance swiftly and vigorously, a growing number of people choose shopping on the Internet as their major way of shopping. As the online shopping is in vogue, the problem lying in the package of express has gradually drawn people’s attention. As the data reveals, the number of paper boxes that China’s e-commerce brought about is over 10 billion. The packages of express resulted in environment pollution and waste of resources, At present, China does not yet have an efficient and comprehensive express packaging recycling system, and the only sustainable recycling design has a small application range and the effect is not obvious. For the purpose of improving the recycling rate of packages and in response to the "sustainable development strategy", this paper, from the standpoint of consumer psychology, the real consumption situation and package recycling status quo, makes use of the Internet as the bridge to realize the design of virtual APP and recycling device, so as to form a complete recycling system of express package. This system mainly utilizes the gravity sensor, information processing system and storing and arranging device, and is backed by sophisticated techniques. The researches have shown that, the simplification of creative recycling system, the time-saving effort, high efficiency, as well as the conception of the smart classified recycling have changed the traditional way of recycling. These improvements have greatly reduced the pollution and waste that express packages caused and make the resources being used for the second time a reality.
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Due to the wire sawing machine cutting technology has the advantages of more efficient, safer, higher yield and less pollution than the traditional quarrying method, it has been widely used in the mining of mine stone. In order to better analyze and study this technology, combined with the research progress of domestic and foreign scholars, the wire sawing machine cutting technology has been comprehensively analyzed and summarized. Firstly, the current advanced modular design of the wire sawing machine is introduced. Secondly, the structural innovation of multi-rope wire sawing machine is introduced. The influences of cutting speed and feed rate on the wear of diamond bead rope and the cutting efficiency of wire sawing machine are analyzed. And on the basis of this, the motor is under PID controll to find the optimal speed value, and finally explain its future development.
© 2019 Published under licence by IOP Publishing Ltd.

Due to the wire sawing machine cutting technology has the advantages of more efficient, safer, higher yield and less pollution than the traditional quarrying method, it has been widely used in the mining of mine stone. In order to better analyze and study this technology, combined with the research progress of domestic and foreign scholars, the wire sawing machine cutting technology has been comprehensively analyzed and summarized. Firstly, the current advanced modular design of the wire sawing machine is introduced. Secondly, the structural innovation of multi-rope wire sawing machine is introduced. The influences of cutting speed and feed rate on the wear of diamond bead rope and the cutting efficiency of wire sawing machine are analyzed. And on the basis of this, the motor is under PID controll to find the optimal speed value, and finally explain its future development.
© 2019 Published under licence by IOP Publishing Ltd.

A double-layered tube is widely used and developed in various fields because of its perfect comprehensive performance and design. With the advent of the era of a double-layered tube, the requirements for double layered tube forming quality, manufacturing cost and forming efficiency are getting higher, so forming methods of a double-layered tube are emerged in an endless stream, the forming methods of a double-layered tube have a great potential in the future. The liquid impact forming technology is a combination of stamping technology and hydroforming technology. Forming a double-layered tube has huge advantages in production cost, quality and efficiency.
© Published under licence by IOP Publishing Ltd.