Abstract: Introduced systematically the forming principles and mathematical modeling of grinding/
milling spiral flutes with numeric control machines, overviewed the functions of multi-axis linkage
and the determination technique of the number of the linkage axes, discussed the conversion
technique of NC—STEP-NC code in programming with EXPRESS, presented advances of
controlling systems with high performance. Much attention was paid to the explanation of the error
modeling and the tool interference in the real machining with the error-compensation techniques.
Trends were envisioned on key technique study of the forming principles for the spatial spiral flutes,
function of multi-axes, tool interference in the real machining and simulation of the operation
processing, as well as automatic generation of NC codes and the connection /compatibility of the
codes with the mainline NC systems, in future.
Abstract: A new type of torque sensor system used in torque rheometer is designed. Precision and
reliability is analyzed by virtual prototyping simulation. Simulation shows that the system error
increases with the backlash increasing. So the gearhead must have some certain precision demand.
The torque sensor components are developed on the basis of simulation. The experiment shows that
this measure system does not use active part, so it does not need to maintenance, and the reliability
is high. The temperature and outside stress influence and hysteresis error are eliminated. The torque
sensor system measure precision is better than 0.1% F.S.
Abstract: A real time hand tracking and gesture recognition approach which can deal with dynamic
backgrounds is presented. This approach is based on computer vision. It segments hand from dynamic
backgrounds using the color-based and appearance-based methods. Then, it locates the hand
according to marker on the hand. Last, it recognizes the gesture based on geometry constraint of hand.
In comparison with the traditional approaches, it provides a good real time performance, is easy to
realize, does not require a stationary camera and is not sensitive with intensity different because its
gesture recognition does not depend on the templates. Moreover, an augmented assembly system
using the presented approach is described. The experiment result of the augmented assembly system
demonstrated the effectiveness and robustness of our approach.
Abstract: In this paper, the theory of the powder temperature measurement using radiation is
briefly illustrated, and the measurement system on temperature field in coaxial powder stream of
laser cladding by applying color CCD and digital image processing technology is designed. The
experimental result indicates that this measurement system can test the distribution of temperature
Abstract: Due to the high strength of austenitic stainless steels, it is essential for cutting tool to
keep with appropriate chamfered edges during the face milling process. In this paper, face milling
mechanics with chamfered edge based on cutting force and chip formation were analyzed through
finite element analysis (FEA). Three kinds of tools with different chamfered edges were studied on
face milling of 1Cr18Ni9Ti austenitic stainless steel. The primary research results indicated that
FEA results showed good consistency with experimental results. This can provide references for
development and application of tools during face milling process.
Abstract: The factors of outline appearance, colors and interior decorations in vehicle design have
direct influence on consumers. How to express these factors rapidly and vividly by using virtual
reality (VR) technology has been researched in the paper. Firstly, the design scheme has been
presented out of virtual driving platform. Secondly, the vehicle models and its exterior scenes have
been built. In addition, the virtual driving platform has been established based on EON Studio, the
Cg advanced rendering and the collision detection are developed of vehicle body and exterior
scenes. Finally, the human-machine interactive operations have been realized, which provides
virtual environment for designers and customers to observe and experience freely in the virtual