P.253-257,311-315,331-335,730-733页
查看更多>>摘要：This collection of 142 papers was carefully selected from the more than 300 papers submitted. All of the papers were subjected to peer-review by at least two expert referees.The collection covers the latest theoretical and experimental research on machining and advanced manufacturing technology. It covers a remarkably wide range of topics: Theory and technology of cutting and grinding, New technologies of tool, Precision and ultra-precision machining, Advanced manufacturing processes and technology, Micro-nano technology and micro-systems, Mechanical manufacturing experiment and detection technology, Automation and modern manufacturing systems, Advanced manufacturing models and strategies.
原文链接:
NETL
NSTL
Takashi SatoYongbo WuWeimin LinKunio Shimada...
P.258-262页查看更多>>摘要：The finishing process of a metal mold depends on the hand work of experts by using a whetstone tool in many cases. This is because it is difficult to treat the three-dimensional configuration, such as free-form surfaces and convex and concave configurations. To overcome this difficulty, we propose a dynamic magnetic field assisted finishing using magnetic compound fluid (MCF) for three-dimensional configurations. In this paper, we demonstrate the MCF slurry (MCF mixed abrasive and cellulose fiber in) under dynamic magnetic field shows the high form restoration and generates the high normal force compared to that under static magnetic field; resulting in shows the high finishing performance. Moreover, we compare and discuss the surface roughness and form accuracy under both static and dynamic magnetic fields against three-dimensional configuration made of high hardness non-ferrous mold steel HPM75, which is used for plastic injection mold.
原文链接:- NETL
- NSTL
Trans Tech Publications Ltd
Xiaodong YangYong WanFuqiang Hu
P.263-267页查看更多>>摘要：In the micro EDM method by electrostatic induction feeding, a pulse generator is coupled to the tool electrode by a capacitor, since the negative influence of the stray capacitance in the circuit can be eliminated, and the discharge energy per pulse can be minimized, thereby realizing discharge craters of nanometer order. However, there is still the stray inductance in the discharge circuit, other than the stray capacitance. In this study, in order to examine the influence of the stray inductance, experimental investigation was conducted.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
Yuna YahagiTomohiro KoyanoMasanori KuniedaXiaodong Yang...
P.268-271页查看更多>>摘要：This paper describes machining characteristics of high spindle speed WEDG using the electrostatic induction feeding method. In this method, non-contact electric feeding allows the workpiece rod to be rotated at a high speed of up to 50000rpm. Since the temperature rise on the workpiece surface is low, the material removal rate was two times higher and the surface roughness was also improved compared to the normal RC discharge circuit where the rotational speed was 1000rpm at the highest due to contact electric feeding using a brush. Furthermore, micro rods thus prepared were used as tool electrodes to machine micro-holes with the same rotation speed of 50000rpm. It was found that smaller gaps and better straightness can be obtained due to the high flushing efficiency at the high spindle speed.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
Stephen WanWeng Seng FongQi Ying Leong
P.272-276页查看更多>>摘要：We present simple deterministic process models for the prediction of the evolution of the cross-sectional profile of glass channels generated by erosive wear in micro air abrasive jet machining using a round nozzle. The present work was motivated by a need to understand the sensitivity of the geometry of the generated cross-sectional profile to the degree of offset between the centre of the nozzle and the centre of the mask defining the channel. Experiments were carried out on soda lime and borosilicate glass to verify the process models. Predicted results show fairly good agreement with experimental results. We conclude that, without proper alignment, the cross-sectional profile is easily skewed, as the micro abrasive jet machining process quickly acts on any initial geometrical skewness and compounds it over time.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
GU LinLI LeiZHAO WanshengK.P. Rajurkar...
P.282-286页查看更多>>摘要：This paper aims to introduce the performance of bunched-electrode for die-sinking EDM. Bunched-electrode was formed by bunching numerous hollow cell-electrodes together to generate an electrode in which end surface matches the final surface of the mould cavity. FEM analysis and experiments were conducted to demonstrate the feasibility and effectiveness of bunched electrode in ED machining. Experiments show that while machining with bunched-electrode, it is feasible to apply a much higher peak current to achieve higher MRR. Meanwhile, a special phenomenon called shallow radial craters in machining with bunched-electrodes was observed and analyzed. One possible reason may be that the plasma columns in the gap are distorted outwards by strong inner pressure flushing.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
Yusuke NarabuJiang ZhuTomohisa TanakaYoshio Saito...
P.287-291页查看更多>>摘要：Currently CAD/CAM systems have become more common in automated manufacturing to enhance accuracy and efficiency. However, machining efficiency and accuracy are mainly relied on the experience of the engineer. Therefore, in this research the main aim is to propose the system which automatically analyzes the characteristics of a CAD model and to extract manufacturing features. The method for analyzing shapes of a CAD model represented by triangle mesh is studied. The system can extract planar, spherical, cylindrical, hole, arc, and other curved regions. This research will improve the integration of CAD, CAM system, and is supposed to have a great potential in the application of manufacturing and other engineering fields.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
Takuya MASUDAKoichi MORISHIGE
P.292-296页查看更多>>摘要：In this report, we extended the tool path generation method for five-axis controlled machining by using the original two-dimensional C-Space for adjusting to using square end mill. We defined the cutting point coordinate system, and let C-Space adjust to square end mill. Furthermore, we selected the position of the cutting point while considering the tool attitude by using C-Space of the cutting point coordinate system, and generated the tool path. The tool path generated by the proposed method considered tool interference, movable range of driving axes of machine tool, continuity of tool attitude change, and reduced in cutting remains at fillet parts.Lastly, by performing some machining simulation, we confirmed that the proposed tool path generation method is effective for machining with square end mill.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
Tatsuro ABEKeigo FUKUNAGA
P.297-300页查看更多>>摘要：Gear precision measurement was carried out by teeth number z=17, gear module m_n=0.5, tooth width b=10mm, spur gear and JIS C 3604 brass material. Gear for cutting force measurement was carried out by z=30, m_n=1.75, spur gear, JIS C 3604 brass material. Main results are as follows: (l)Gear precision and cutting force was almost the same both at dry and wet cutting. (2)Process capability index Cp of tooth profile errors were almost the same both at dry and wet hobbing gear cutting, and 5.9 to 8.1. Cp of tooth lead errors was 5.8 to 10.7. It was concluded that dry hobbing gear cutting of brass material has a sufficient production capacity. (3)Almost the same gear precision at both dry and wet hobbing gear cutting was considered because cutting forces were also same.
原文链接:- NETL
- NSTL
- Trans Tech Publications Ltd
