Events

Short Course: Ultra-precision Machine Design and Control (Registraton Closed)

Date: 01 Apr 2008 - 03 Apr 2008

Venue: SIMTech Training Room, Level 3, Tower Block

Introduction
Today’s machines, be they for semiconductor manufacturing, machine tools, or other types, operate at faster rates along with increasing precision. This is brought about by designers having skills and knowledge of the machines and the processes. These experienced designers are a rare and much sought after breed. Presented by SIMTech senior scientists and our expert consultant, who is also a Visiting Fellow of Cranfield University, this highly practical, results-oriented and intensive 3-day course will provide participants with the fundamentals of the basic precision engineering principles and state-of-the-art concepts for achieving higher precision and accuracy in your machines and products. The course concludes with case studies and a laboratory tour. 

The course topics encompass:
(1) Principles of Precision Machine Design [Dr Lin Wei]
This session starts with an introduction of precision engineering and the importance of precision machine design. Definitions of the key terms used in precision machine design and control are presented. The fundamentals of the precision machine design are discussed.
(2) Kinematic and Semi-kinematic Design [Mr Bill Wills-Moren]
This session will outline the principles of kinematic design, discuss the benefits and limitations and introduce the concepts of semi-kinematic design and elastic averaging. The kinematic representation of real systems as part of the design process will also be covered.

(3) Precision Mechanism Design [Dr Yang Guilin]
This session will focus on two types of precision mechanisms, i.e., parallel kinematic mechanism and flexure-based mechanism, which are getting popular in today’s precision machines. For each precision mechanism type, after introducing its working principles, advantages/limitations, and application examples, the critical design analysis issues (such as kinetostatic analyses and general design methodologies) will be presented and illustrated.
(4) Design of Machine Structures [Mr Bill Wills-Moren]
Most engineering courses cover the design of structures in a general way and concentrate on   ensuring the structure will not fail. This session covers the design of structures for high precision machines and pays attention to ensuring the structure is stiff enough. The use of materials for these structures will also be covered.
(5) On-machine Measurement [Mr Bill Wills-Moren]
Linear systems (long range), rotary and angular systems, and linear systems (short range) will be described in principle. The use of metrology frame systems will be introduced and examples given. Also discussed will be in-situ metrology systems for particular applications.
(6) Guideway Design [Mr Lim Chee Wang]
Motion performance and ease of control is greatly influenced by the guideway characteristics.  This session will introduce the common types of guideways used in ultra-precision machine, as well as their performances, applications and practical issues to consider when using them. 
(7) Computer-aided Design of Machine Structures [Dr Lin Wen Jong]
This session will introduce the state-of-art Computer-Aided-Engineering (CAE) and also give the brief explanation and examples regarding the usage of CAE tools for the design of machine structure.
(8) Precision Motion Control [Dr Gong Zhiming]
From system perspectives, we will study in this session various devices and components which form a complete motion control system.  Topics of this session include linear motors and their drivers, measurement and feedback, industrial motion controllers, system performance, PID tuning, feedback and feedforward control, command profiling, and etc.

(9) Metrology Instruments [Dr Fang Zhongping]

This session will introduce the principle and application of laser interferometry technology for precision machine metrology. The fundamentals of both laser displacement measurement interferometer and laser tracker will be discussed.
(10) Machine Calibration [Bill Wills-Moren] 
Calibration methods are discussed under three headings – Parametric, “Artifect” and Global techniques.  The problems of accuracy of axis of rotation will be discussed together with the reversal principle.
(11) Thermal Effects [Dr Lin Wen Jong] 
This session starts with the background of thermal effects for precision machine design and then introduces the measurement tools and control method to investigate and isolate the thermal effects on the machine. Finally, few examples will be discussed and addressed.
(12) Error Budgeting [Mr Bill Wills-Moren]
Cranfield Precision Ltd. (and prior to that Cranfield Unit for Precision Engineering) have developed and used error budgeting techniques to estimate the errors in machines they are designing for many years. This session outlines these principles in simple terms and gives some examples. 
(13) Design Case Studies [Dr Lin Wei and Mr Bill Wills-Moren]
Cases include design of a decouple stage and a friction drive rotary stage.

Speakers
Mr Bill Wills-Moren:UK Visiting Fellow of Cranfield University & SIMTech Precision Engineering (PE) Consultant
Dr Lin Wei:SIMTech Group Manager, Mechatronics Group
Dr Yang Guilin:Deputy Group Manager, Mechatronics Group
Dr Gong Zhiming: Senior Scientist, Mechatronics Group
Dr Fang Zhong Ping:Senior Scientist, Precision Measurements Group
Dr Lin Wen Jong:Research Scientist, Mechatronics Group
Mr Lim Chee Wang:Research Engineer, Mechatronics Group

Who should attend
Mechanical engineering staff involved in design of high-precision and high-speed machinery and equipment will find this course very informative.

Registration
Registration closed. 


Registration Fee (Inclusive of 7% GST)
SIMTech Members: $428.00 per pax
Non-SMS Member : $535.00 per pax
Registration fee inclusive of course notes, lunch and refreshments.
SIMTech members are entitled to 20% discount.

For general enquiries, please contact Alice Koh
Email: alicekoh@SIMTech.a-star.edu.sg, Tel: 6793 8249.