Dr Christian Griffiths
Senior Lecturer
Engineering
Telephone: (01792) 606758
Room: Academic Office - A_207
Second Floor
Engineering Central
Bay Campus

BSc, PhD, CEng, MIMechE

Specialist Subjects: Micro and Nano Fabrication, micro injection moulding, micro tooling, 3D printing, polymer processing, robotics, automation, medical engineering and biomimetics

A Chartered Engineer (CEng) and a Member of the Institution of Mechanical Engineers (MIMechE). My overall research interest lies in the field of Micro and Nano fabrication (MNF), 3D printing and characterisation of micro scale polymer flow behaviour at the melt/tool interface using novel condition monitoring techniques. I have undertaken MNF research under FP6, FP7, EPSRC, TSB, WEFO and A4B funding programmes. My research activity is coupled by 12 years of industrial experience within the automotive sector.

Current research areas:

Additive Manufacturing (FDM) for rapid tooling and prosthetics
Micro and Nano replication
Computational modelling of polymer micro parts
Development of tooling using Bulk Metallic Glasses
Tool surface treatments with Diamond Like Carbon
Novel condition monitoring for Micro and Nano fabrication
Machining strategies for novel alloys

Publications

  1. & The mechanical strength of additive manufactured intraosseous transcutaneous amputation prosthesis, known as the ITAP. AIMS Bioengineering 5(3), 133-150.
  2. & Investigation of the Integrity of aC:H Coatings on Stainless Steel Micro-Moulds during Thermal Cycling. Journal of Coating Sciences and Technology 5(1), 1-11.
  3. & Optimisation process for robotic assembly of electronic components. The International Journal of Advanced Manufacturing Technology
  4. & Temperature effects on DLC coated micro moulds. Surface and Coatings Technology 307, 28-37.
  5. & A design of experiments approach to optimise tensile and notched bending properties of fused deposition modelling parts. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 230(8), 1502-1512.

See more...

Teaching

  • EG-269 Design of Machine Elements

    The module introduces the students to the design and analysis of a number of common machine elements including drives and couplings, gears, bearings and power screws. Balancing of rotating machinery is also covered.

  • EG-284 Manufacturing Technology II

    The course builds on information presented in Manufacturing Technology I (EG-182) by describing advanced processes for special machining and surface modification and by examining available joining techniques for assembly of components. The advantages and limitations of specific processes are outlined and procedure for optimum design and manufacture provided. The importance of quality assurance in manufacturing is discussed and selected methods of condition assessment are described. Module Aims: to provide awareness and understanding of advanced manufacturing methods used for engineering materials and components.

  • EG-M111 Automation & Robotics

    The module will provide the knowledge and skills to design, build and safe operation of industrial robotic and automation systems. Systematic introduction of kinematics robot manipulator will be given, based on the learning of homogeneious transformation matrix and Denavit Hartenburg (DH) convention. The graduate will gain a critical awareness in selecting and applying appropriate automation and robotic equipment for industrial applications, and they will be able to identify DH parameters of a given robot manipulator and then calculate its forward/inverse kinematics.

  • EGH101 Engineering Analysis 1

    This module covers the essential mathematical and analysis skills that underpin the scheme. It covers functions, algebra, calculus, matrices.

  • EGH102 Business Management and Quality

    This module provides an introduction to Engineering Management and the use of Quality Systems within an engineering manufacturing environment. It covers underlying management theory, economic planning, resource management and a range of modern quality management processes.

  • EGH103 Engineering Manufacturing Methods

    This module gives an overview of the most important manufacturing methods in use for engineering components and structures. It covers methods suitable for both metallic and composite materials and will ensure students are able to make informed decisions on suitable manufacturing and assembly methods in a range of different situations. It includes both theoretical and practical work.

  • EGH104 Materials and Design

    This module covers the science and engineering of metallic and composite materials used in aerospace applications. It covers the materials structure, processing and properties, especially the mechanical performance. It includes practical training in materials testing and data analysis.

  • EGH105 Computer Aided Engineering Design

    This module covers the use of computer aided design in Engineering. It includes theoretical aspects of the design process, practical training in the use of CAD software and a major exercise using the software to produce technical designs. The use of CAD underpins many aspects of Mechanical and Electrical Engineering and so this is a vital grounding in the subject.

  • EGH106 Electrical Circuits & Instrumentation

    To develop a detailed understanding of the design and performance of advanced electronic circuits. This module provides an introduction to analog electrical circuit analysis and design and introduces the fundamentals of sensors, measurement, instrumentation and control in typical engineering applications.

  • EGH200 Project

    This work-based project module will take place throughout the year and within the student¿s employing company. It will involve flexible learning and will incorporate many elements of the prior learning into a substantial project where there is significant scope for individual direction. It will be directed and supported by both industrial and academic supervisors. The project will focus on specific aspects of design and / or manufacture and will allow students to develop skills and understanding across all relevant areas. It will give an opportunity for students to take responsibility for the management and recording of the project progress. Assessment will be by a combination of progress report, an oral presentation made to the academic/industrial supervisors/other employees and a final substantive project report.

  • EGH201 Engineering Analysis 2

    This module is a continuation of the level 4 module and enables students to understand the relationships of advanced mathematics and design in Engineering applications. It extends the mathematical tools considerably which forms a basis for more advanced aspects of engineering including structural analysis and aerodynamics.

  • EGH202 Flight Mechanics

    This module provides a thorough introduction to the mechanics of flight. It covers the fundamentals of aircraft aerodynamics, performance, stability and control. The basic concepts and principles are derived and their application to specific problems is demonstrated. The module also provides an overview of fundamental fluid mechanics and the methods that can be employed by engineers for the analysis of basic problems involving stationary and flowing fluids.

  • EGH203 Advanced Manufacture, CAM and NDT

    This module covers various advanced manufacturing methods, including high speed forming, advanced machining and joining and manufacturing with composites and ceramics. It also covers computer aided manufacture and non-destructive testing with considerable practical work to reinforce these topics.

  • EGH204 Structures and Stress Analysis

    The module starts with an overview of the mechanics of materials and structures. It describes the way in which simple engineering components behave under the action of external forces or other actions such as thermal changes. It then progresses to consider the analysis of statically indeterminate structures. After a review of statics and stress resultants, energy methods of analysis are introduced leading to the calculations of deflection and deformation for frame structures. Consideration of dynamic forces is then covered including analysis of vibrating structures. Finally, computational analysis methods of structural analysis are introduced which will lead towards the use of finite element analysis.

  • EGH205 Electronic Circuits and Control

    This module introduces circuit elements and control systems: introduces circuit elements such as transistors and FETs and shows how they can be used as amplifiers and switches.The amplification and bias conditions for transistor amplifiers are analysed and discussed in detail. Electronic Circuits: Circuit elements necessary for building operational amplifiers such as the long tailed pair and the current mirror are analysed, and a complete circuit for an operational amplifier is discussed. Some applications of operational amplifiers such as the function generator and instrumentation amplifier are introduced with practical applications. Circuits using MOSFETs for logic and analogue switches are described. Control Systems: The module introduces the topic of feedback control systems and presents methods of modelling that lead to transient, steady state and stability performances in control systems. An emphasis is placed on links between time responses and complex frequency domains. Principal topics are feedback systems, focusing on the system characteristic equation and its solution. There is an emphasis on the root-locus approach in studying stability conditions and compensation design. The overall aim is to understand and be able to apply basic techniques for the analysis and design of feedback control systems

  • EGH206 Advanced Engineering Science

    The module provides an introduction to the underlying scientific methods that can be employed by engineers for the analysis of problems in Fluid Mechanics, Thermodynamics and Electromagnetics.

  • EGH300 Research Project

    This research project module will cover the entire year and be completed in the summer period within the student¿s employing company. It will involve flexible learning and will incorporate many elements of the prior learning into a substantial research project where there is significant scope for individual direction. It will be directed and supported by both industrial and academic supervisor. Assessment will be by a combination of progress report, an oral presentation made to the academic and industrial supervisors as well as other employees and a final substantive project report.

  • EGH301 Engineering Management

    This module is designed to equip studying engineers with the managerial skills and business acumen that will be needed by technically trained engineers within industrial companies to help turn technological innovations into profitability. This module familiarises the student with the aims, objectives and methods of industry and commerce and students will learn how to build models for various aspects of financial and operations management. The numerous illustrations used throughout helps guide the student through the complexities of business. Assessment will be via a case study, if possible linked to the workplace with supervision from both academic and industrial staff.

  • EGH302 Advanced Engineering Design

    This module provides students the opportunity to apply their previously gained knowledge and experience to design, develop, build and test a small scale unmanned air vehicle, to an exacting specification. Development will be done in multi-disciplinary teams, requiring students to tackle all aspects of aero-vehicle design, business strategy, planning, manufacture, and test. Tuition will be provided on various aspects of design. Students are expected to call upon knowledge gained through previously attended modules, as well as conducting research to tackle the technical challenges that they encounter. Additional support and guidance will be provided through lab classes.

  • EGH306 Manufacturing Optimisation and Automation

    The module addresses business drivers and how these define the design of a manufacturing system. The module also includes methods for developing and optimising manufacturing processes and systems and the implementation of automation and robotics to manufacturing.

  • EGH308 Experimental Studies

    The course reinforces the student¿s ability to undertake experimental studies in a controlled and accurate manner. The module will include a number of activities which reinforce theoretical aspects of engineering covered in other modules. Each activity is self contained and the student will present the findings in written form after completion of the activity. The practical activity will be undertaken in an intensive week-long period in Swansea University, using specialist equipment. There will be some preparatory material covered in advance of this period. Analysis and interpretation of results will continue after the intensive period. All students work in groups and carry out work in three experimental areas which support other modules. A log-book is maintained and will form part of the assessment alongside a formal (individual) report which is submitted by a deadline approximately three weeks after the intensive practical period.

  • EGH310 Digital Manufacturing

    Industrial production is entering a new and exciting era, called Smart Manufacturing that will bring a complete transformation in the way products are designed, manufactured and serviced through pervasive and ubiquitous use of ICT, sensors and intelligent robots. To fully exploit the potential of these new technologies there is the need to develop awareness of what Smart Manufacturing is and how organisations can embrace the necessary changes to drive efficiency and boost productivity. This module covers fundamental concepts, technologies and business strategies of Smart Manufacturing to equip the participants with the necessary interdisciplinary skills to become leaders and innovators in the design, deployment and operation of smart production systems or Factories of the Future.

  • EGH311 Virtual Systems

    Virtual Reality (VR) is a burgeoning field. Many industries have utilised VR technologies, for instance, the automotive industry has used VR for a variety of applications including design, manufacturing and training. Until now technological limitations have held back wide-spread usage as the processing power wasn¿t available. Due to the recent technological advancements in the gaming industry, VR has become both more accessible and affordable. Furthermore, now that the advent of computationally advanced smartphones have become commonplace the technology has finally caught up to aspirations. This has resulted in new opportunities for users to contribute to both the material and content of available software for VR. VR is predicted to gain and continue to gain momentum in the future. This module will cover fundamental concepts, technologies and business applications of VR. This will be achieved through preparing participants with the necessary knowledge to make management-based decisions on VR technologies providing a grounding of technological advantages and disadvantages. This is broken down into three main segments: understanding the VR hardware available with live demonstrations of current industry leaders such as HTC Vive; An overview of the available software and hardware solutions for the creation of VR assets involving photogrammetry particularly the use of UAV and thermographic cameras; and finally this module will examine the case studies for VR use particularly remote engineering ¿ closing the gap between the design office and the field.

  • EGH312 Power Systems

    This module aims to introduce the component of a Power Network and discuss their operation in both balanced and unbalanced conditions

  • EGH313 Power Electronics

    The module introduces circuit topologies and switching techniques for power electronics systems.

Supervision

  • Untitled (current)

    Student name:
    MSc
    Other supervisor: Dr Ian Cameron
  • Robotics for Automated Temperature Probe Manufacturing (current)

    Student name:
    MSc
    Other supervisor: Dr Ashraf Fahmy
  • Control and Interface Design of Human Robot Interaction«br /»«br /»«br /»«br /»«br /»«br /» (current)

    Student name:
    PhD
    Other supervisor: Dr Chenguang Yang
  • Production of components through microcellular processing (current)

    Student name:
    EngD
    Other supervisor: Dr Andrew Rees
  • Untitled (current)

    Student name:
    EngD
    Other supervisor: Dr Cinzia Giannetti
  • Untitled (current)

    Student name:
    EngD
    Other supervisor: Dr Cinzia Giannetti
  • 'Research into the development of methodologies for enhanced and sustainable profitability in injection moulding' (awarded 2018)

    Student name:
    MSc
    Other supervisor: Dr Andrew Rees