...Peng Xu; Benny C. F. Cheung; Bing Li Calibration is an important way to improve and guarantee the accuracy of machine tools. This paper presents a systematic approach for position independent geometric errors (PIGEs) calibration of five-axis machine tools based on the product of exponentials (POE...

... profile, the cutting forces have been modeled separately for all the three cutting zones. The mechanistic method has been employed wherever applicable to have a good correlation between the analytical and the experimental results. The force model has been calibrated and validated for conical drills...

...Yu Lin; Fengfeng Xi; Richard Phillip Mohamed; Xiao-wei Tu Developed in this paper is a hybrid method for calibration of modular reconfigurable robots (MRRs). The underlying problem under study is unique to MRRs, that is, how to calibrate a set of MRR’s geometric parameters that are applicable...

... by measuring a calibrated gear or a gearlike artifact. It is, however, difficult to obtain a measurement uncertainty of less than 0.1 μ m . The reason for this difficulty is that a gear artifact has a form error and surface roughness, and that the measurement position on the gear face differs slightly from...

...Andrew Honegger; Shiv G. Kapoor; Richard E. DeVor Kinematic couplings have been used to create palletized system for part transfer in a microfactory. While kinematic couplings provide high repeatability, calibration is needed to achieve high interchangeability accuracy. In this paper, a generalized...

... environment. As a result, new techniques are needed to precisely and accurately manufacture large scale monolithic components. Previous work has established the fiducial calibration system (FCS), a technique, which, for the first time provides a method that allows for the accuracy of a coordinate measuring...

...Andrew Honegger; Shiv G. Kapoor; Richard E. DeVor A trigger probe measurement system and measurement methodology are developed for kinematic self-calibration of micro/meso-scale machine tools (mMTs). The trigger probe detects the contact between a spindle-mounted stylus and a table-mounted planar...

... sticking out. In the paper, a method is proposed to predict the transfer function of the overall system by coupling the receptances of the analytically modeled end mill and experimentally measured spindle structures. The experimentally proven method allows for the automated calibration of the spindle...

... cyclotron resonance plasma source enhanced radiofrequency (rf) reactive magnetron sputtering. Static and dynamic calibrations of the Ni Cr ∕ Ni Si thin-film thermocouples are presented. The results of the testing indicate that the thin-film thermocouples have good linearity, little response time...

...-line, must be taken accordingly. This paper is concerned with the detection of fixture faults, which are considered a major contributor to assembly dimensional variation 1 . fault location instrumentation metal product industries sensors assembling sheet metal processing calibration...

...Sunghyuk Park, Graduate Student; S. G. Kapoor, Professor, Fellow ASME; R. E. DeVor, Professor, Fellow ASME A methodology for mechanistic cutting force model calibration via microstructure-level finite element cutting process simulation is presented and applied to ferrous materials, including...

... to analyze the contact area behavior in the resistance spot welding process. A lumped parameter model was then developed to characterize the contact area change with the dynamic resistance measurement. A calibration and an estimation algorithm were subsequently devised for on-line applications. The proposed...

...Mark Erickson, Graduate Research Assistant; Mark Costello, Assistant Professor A simple testing device is presented that simultaneously calibrates all dominant error sources for accelerometers and gyroscopes found in typical microelectromechanical inertial measurement units on smart projectiles...

...Zhenyu Kong; Wenzhen Huang; Dariusz Ceglarek In a number of manufacturing processes—tooling installation, calibration, and maintenance—guarantee the precision of fixtures and play important roles toward the overall quality of products. Recently, a new type of measurement equipment called a “laser...

... to calibrate and validate the model are conducted on taps with different tooth geometries. The model-predicted thrust and torque values compare favorably with the experimental value. Elastic recovery is found to significantly increase the thrust and torque produced during form tapping. Contributed...

.... At the beginning of this paper, the principle of structured-light based 3D vision inspection is introduced. Then, a method of gaining calibration points for 3D double-vision inspection system is proposed in detail. In order to gain calibration points with high precision, a double-directional photoelectric aiming...

... calibration procedure. A new methodology is presented for accurately determining the cutting force coefficients for multi-axis machining. The force model presented in Part 1 of this paper is reformulated so that the cutting force coefficients account for the effects of feed rate, cutting speed, and a complex...

... the three distinct regions of the drill (drill body, cutting lips and chisel edge) at various process conditions in both wet and dry conditions with coated and uncoated drills. The identified heat fluxes along with a calibration scheme are used in predicting the transient temperatures in the workpiece...

... of various 3-D active vision systems. However, current projector models or structured light calibration techniques for 3-D active vision systems are limited to stripe-type structured light and the majority of them do not consider projector lens distortion. In order to overcome these limitations, a digital...

... system in this paper. Based on the image feature analysis of grid structured light, a calibration method of grid structured light based 3-D vision inspection is proposed, and experimental results are also presented. This method is easy, efficient and fast to carry out. It simplifies the calibration...