An improved adaptive sampling strategy for freeform surface inspection on CMM

The components with freeform surface are widely used in industrial fields. The machining quality of freeform surface becomes increasingly significant. Coordinate measuring machine (CMM), as a conventional dimensional measuring instrument, is commonly used to inspect freeform surface. The sampling strategy, consisting of distribution of sampling points and sample size, is important to the effectiveness and accuracy of the measurements performed on CMM. The present work aims at proposing an improved adaptive sampling strategy based on a machining error model (MEM) for freeform surface inspection on CMM. The machining error model is built to determine the distribution of sampling points adaptively. In addition, Hammersley sequence is adopted to address the aliasing problem. Experiments are performed to compare presented strategy with four well-known sampling strategies. Results prove that the MEM is valid and the present strategy is reliable and effective.

[1]  Li Fang,et al.  Sampling Strategy for Free-Form Surface Inspection Using Coordinate Measuring Machines , 2014 .

[2]  Gaiyun He,et al.  Conicity error evaluation using sequential quadratic programming algorithm , 2014 .

[3]  Yih-Fang Chang,et al.  Design and implementation of look-ahead linear jerk filter for a computerized numerical controlled machine , 2010 .

[4]  Jay F. Tu,et al.  Roundness modeling of machined parts for tolerance analysis , 2001 .

[5]  P. Venkateswara Rao,et al.  Selection of an optimum sample size for flatness error estimation while using coordinate measuring machine , 2007 .

[6]  P. Venkateswara Rao,et al.  Selection of sampling points for accurate evaluation of flatness error using coordinate measuring machine , 2008 .

[7]  G. He,et al.  Adaptive Sampling Strategy for Free-Form Surface Based on CAD Model , 2012 .

[8]  Dongxia Wang,et al.  Accurate evaluation of free-form surface profile error based on quasi particle swarm optimization algorithm and surface subdivision , 2013, Chinese Journal of Mechanical Engineering.

[9]  Stefano Petrò,et al.  Quality Control of Manufactured Surfaces , 2010 .

[10]  Yingjie Zhang,et al.  Adaptive sampling method for inspection planning on CMM for free-form surfaces , 2013 .

[11]  Wei Wang,et al.  A new test part to identify performance of five-axis machine tool—part I: geometrical and kinematic characteristics of S part , 2015 .

[12]  He,et al.  ALGORITHM FOR SPHERICITY ERROR AND THE NUMBER OF MEASURED POINTS , 2006 .

[13]  Les A. Piegl,et al.  The NURBS Book , 1995, Monographs in Visual Communication.

[14]  M. S. Shunmugam,et al.  Effect of probe size and measurement strategies on assessment of freeform profile deviations using coordinate measuring machine , 2011 .

[15]  Keiichi Shirase,et al.  Simple Testing Method for Spindle Rotating Accuracy of Machining Tool , 1995 .

[16]  Hoda A. ElMaraghy,et al.  Automatic sampling for CMM inspection planning of free-form surfaces , 2002 .

[17]  Giovanni Moroni,et al.  A tolerance interval based criterion for optimizing discrete point sampling strategies , 2010 .

[18]  Gaiyun He,et al.  CAD-based measurement planning strategy of complex surface for five axes on machine verification , 2017 .

[19]  Jun Hu,et al.  Adaptive sampling method for laser measuring free-form surface , 2004 .

[20]  Menno Kosters,et al.  Curvature-dependent parameterization of curves and surfaces , 1991, Comput. Aided Des..

[21]  M. S. Shunmugam,et al.  Practical Measurement Strategies for Verification of Freeform Surfaces Using Coordinate Measuring Machines , 2011 .

[22]  Wei Wang,et al.  A new test part to identify performance of five-axis machine tool-Part II validation of S part , 2015 .

[23]  Tien-Tsin Wong,et al.  Sampling with Hammersley and Halton Points , 1997, J. Graphics, GPU, & Game Tools.

[24]  Wei Wang,et al.  The mechanism of curvature for complex surfaces during five-axis flank milling , 2018 .

[25]  Yin-Lin Shen,et al.  Sampling strategy design for dimensional measurement of geometric features using coordinate measuring machine , 1997 .

[26]  S. Obeidat,et al.  An intelligent sampling method for inspecting free-form surfaces , 2009 .

[27]  Tony L. Schmitz,et al.  Case study: A comparison of error sources in high-speed milling , 2008 .

[28]  Malgorzata Poniatowska,et al.  Deviation model based method of planning accuracy inspection of free-form surfaces using CMMs , 2012 .

[29]  Giovanni Moroni,et al.  Inspection Strategies and Multiple Geometric Tolerances , 2013 .

[30]  G. He,et al.  Profile error evaluation of free-form surface using sequential quadratic programming algorithm , 2017 .

[31]  Harald Niederreiter,et al.  Random number generation and Quasi-Monte Carlo methods , 1992, CBMS-NSF regional conference series in applied mathematics.

[32]  S. Z. Li.  Adaptive sampling and mesh generation , 1995, Comput. Aided Des..