Fixtureless Sensor Standoff Control for High-Precision Dimensional Inspection of Freeform Parts

2006 ◽  
Vol 129 (1) ◽  
pp. 172-179 ◽  
Author(s):  
Vijay Srivatsan ◽  
Reuven Katz ◽  
Debasish Dutta
Keyword(s):  
Turbine Blade ◽  
High Precision ◽  
Computer Aided Design ◽  
Manufacturing Systems ◽  
Turbine Blades ◽  
Dimensional Inspection ◽  
Manual Intervention ◽  
Precision Inspection ◽  
Computer Aided ◽  
Aided Design

High-precision, noncontact dimensional inspection requires sensor standoff control due to the working range limitation posed by high-precision range sensors. Constant sensor standoff with the surface of the part is necessary to ensure accurate measurement. This paper presents a novel computer-aided design (CAD) independent approach to sensor standoff control called “fixtureless sensor standoff control (FSC),” which contrary to current methods does not require a fixture or manual intervention for registration. This approach to sensor standoff control will enable rapid, flexible, and high-precision inspection of freeform parts, thus catering to the needs of future manufacturing systems. In the FSC methodology, the sensor’s position for the next measurement is estimated based on immediate previous measurements. The method was implemented on a four-axis machine used to inspect turbine blades. Results from measurement of an example turbine blade showed the deviation from desired standoff to be significantly smaller than the working range of the sensor.

Computer-Aided Dynamic Analysis and Simulation of Multibody Manufacturing Systems

2015 ◽  
Vol 764-765 ◽  
pp. 757-761 ◽  
Author(s):  
Yunn Lin Hwang ◽  
Jung Kuang Cheng ◽  
Van Thuan Truong
Keyword(s):  
Dynamic Analysis ◽  
Computer Aided Design ◽  
Manufacturing Systems ◽  
Robot Arm ◽  
Effective Factors ◽  
Driving System ◽  
Computer Aided ◽  
Numerical Tools ◽  
Aided Design ◽  
And Control

This paper presents simulation of multibody manufacturing systems with the support of numerical tools. The dynamic and cybernetic characteristics of driving system are discussed. Simple prototype models of robot arm and machine tool’s driving system are quickly established in Computer Aided Design (CAD) software inwhich the whole specification of material, inertia and so on are involved. The prototypes therefore are simulated in RecurDyn- a Computer Aided Engineering (CAE) software. The models are driven by controllers built in Matlab/Simulink via co-simulation. The results are suitable with theory and able to exploied for expansion of complexly effective factors. The research indicates that dynamic analysis and control could be done via numerical method instead of directly dynamic equation creation for multibody manufacturing systems.

Implementation of Rapid Manufacturing Systems in the Jewellery Industry in Brazil

2011 ◽  
pp. 119-138
Author(s):  
Juan Carlos Campos Rubio ◽  
Eduardo Romeiro Filho
Keyword(s):  
Computer Aided Design ◽  
Manufacturing Systems ◽  
Medium Size ◽  
Manufacturing Processes ◽  
Computer Aided ◽  
Design And Manufacturing ◽  
Cad Cam ◽  
High Production ◽  
Rapid Prototyping And Manufacturing ◽  
Aided Design

This chapter presents the rapid prototyping and manufacturing concepts applied as means to reducing time between jewellery designs and manufacturing process. Different processes on jewellery modelling production are presented. Nowadays, the use of technologies as CAD/CAM - Computer Aided Design and Manufacturing in high production companies are very disseminated. However, the implementation of these resources at the design and manufacturing processes of jewels and fashion accessories, in small and medium size businesses, is still insipient. As reference, is presented the situation observed in small and medium companies located in Minas Gerais, Brazil.

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