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    Wt5912 unit0 week1 Wt5912 unit0 week1 Presentation Transcript

    • WT5912TECHNOLOGY EDUCATION & WORKSHOP PRACTICE 2: MATERIALS AND CONSTRUCTIONUnit 0 – Week 1: Construction Studies and Health & Safety
      Department of Design & Manufacturing Technology
      Lecturer/Teacher: Mr. Joseph Lyster
      Academic Year 2011: Spring Semester
      Technical Support: Mr. Joe Murray & Mr. Richie Hennessy
      Lecture Notes: www.slideshare.net/WT4603
      P1004 – 28/01/2011 12-1pm
    • WT5912
      Introduction:
      Students will be introduced to the Construction related syllabi at senior cycle level and develop strategies to teach their concepts and content. Students will draw on their knowledge base from their primary degree and content of this module to formulate a coherent approach to teaching construction based subjects at second level.
      In addition to the Construction syllabi students will be involved in extensive laboratory work to ensure the competent and effective implementation of wood processing safety and practice in second level technology education settings. This is a core issue regarding the management of the classroom environment for health and safety of all and the nature of work being conducted.
      Department of Design & Manufacturing Technology
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      Introduction:
      • Lecturer: Joseph Lyster
      • Teaching Assistant: Joseph Lyster
      • Senior Technicians: Joseph Murray, Richard Hennessy & Louise Madden
      • Lab Groups: 2A
      • Courses Involved: Grad. Dip. In Technology Education
      • Lecture Times: Friday 12-1pm in P1004 (PESS Building)....Be on time!!!
      • Lab Times: Monday 4-6pm/Tuesday 3-6pm
      • Lecture Notes: Available @ www.slideshare.net/WT4603
      Department of Design & Manufacturing Technology
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      Introduction:
      Aim & Objectives…
      The overall aim of this module is to prepare you for the role of teaching, learning and assessment of second level leaving certificate Construction Studies.
      Affective Domain:
      To motivate and foster your moral development as a teacher of Construction Studies with emphasis on critical pedagogy and practice, i.e. health & safety, through the integration of previous knowledge and methods of reflective inquiry
      Cognitive Domain:
      To draw on the learning obtained from your pervious qualifications to support the development of your knowledge, comprehension and application of both theoretical and practical elements of Constructions Studies
      Psychomotor Domain:
      To foster your ability to plan, develop and demonstrate practical processes and techniques through organised teaching and learning activities in the Construction Studies setting
      Department of Design & Manufacturing Technology
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      Introduction:
      Assessment…
      • 60% Laboratory Work (LW)
      • 20% Written Exam (WE)
      • 20% Term Assignments (TA)
      • Machines Practical Exam (Pass / Fail Basis)
      • Lab Book (Pass / Fail Basis)
      • Note:
      • Students must pass all assessment elements to obtain a pass in the module.
      • Students that fail the practical machines exam and repeat exam will automatically fail the entire module.
      • Nature of Project work: Refer to outline, as given, for specific project details.
      Department of Design & Manufacturing Technology
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      Construction Studies
      Department of Design & Manufacturing Technology
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      Construction Studies:
      Details:
      • Construction Studies (C.S.) was established in 1984 and was first introduced to vocational schools
      • It is a second level senior cycle subject and a follow on subject from junior certificate Materials Technology Wood (MTW)
      • It is part of the ‘established leaving certificate’ programme
      • The subject is optional, meaning students can choose to study it if they wish.
      • It is offered in most schools but not all.
      • It offers a broad range of learning involving both theory and practical.
      • In terms of its assessment, it is offered at both ordinary and higher level
      • The uptake in C.S. has continued despite the collapse of the Irish Construction sector/Industry.
      • This can be largely attributed to the learning experience on offer and the respect for teachers of C.S.
      Department of Design & Manufacturing Technology
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      Construction Studies:
      The aims & Objectives…
      Department of Design & Manufacturing Technology
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      Construction Studies:
      The Assessment…
      Department of Design & Manufacturing Technology
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      Construction Studies:
      The Theory…
      Theory/Drawings:
      • General – Planning, sustainable development, health and safety etc…
      • Substructure – Foundation types, rising walls, floors, radon, DPC, provision etc…
      • Superstructure – External Walls, windows, doors, roofs, dormers, chimneys, etc…
      • Internal Construction – Internal walls, floors, partitions, second fixings, doors, etc…
      • Services and External Works – Mechanical services, electricity, wastewater treatment, sewage, etc…
      • Heat and Thermal Effects In Buildings – Construction type, Insulation, material conductivity, air tightness etc…
      • Illumination In Buildings – Natural Light, glazing, LUX, heat transfer, dwelling orientation etc…
      • Sound In Buildings – Insulation etc…
      Department of Design & Manufacturing Technology
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      Construction Studies:
      The Practical…
      Practical:
      • Tools
      • Maintenance and care of tools
      • Uses, construction and mechanical principles
      • Health & Safety
      • Processes
      • Construction of joint types used in partitions, floors, stairs, roof, structural timbers, doors, window frames, box and carcase construction.
      • Laminating board material
      • Correct use of manufactured board
      • Storage of materials, knowing properties of wood.
      • Ability to effectively plan a cutting list, use of jigs clamps etc…
      Department of Design & Manufacturing Technology
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      Construction Studies:
      Coursework & Projects…
      Coursework
      Projects
      Department of Design & Manufacturing Technology
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      Construction Studies:
      Coursework & Projects…
      Department of Design & Manufacturing Technology
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      Construction Studies:
      Current Trends…
      Current Trends:
      • Though the theoretical areas/principles of the subject remain the same there has been a significant change in the process of building.
      • This is currently being assessed in the leaving certificate exam, which is set by the State Examinations Commission (SEC).
      • The subject has engendered a strong theme for economic, social and environmental building performance, i.e. sustainability.
      • These features are being integrated into the examination phase through elements such as updated building regulations, building energy rating (BER), passive housing, sustainable planning and development.
      • A few years ago the subject was to receive a formal update including a revised syllabus and new name –Architectural Technology.
      • However, the current economic climate and the issue of funds to support the broader range of development in the technologies has resulted in this plan being shelved until a future date.
      Department of Design & Manufacturing Technology
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      HEALTH & SAFETY
      Department of Design & Manufacturing Technology
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      Health & Safety Management
      • Section 8(2)e of the 2005 Act states that it is the duty of every employer
      “to provide systems of work that are planned, organised, performed and maintained so as to be, so far as is reasonably practicable, safe and without risk to health.”
      • Health and safety management is a practical and systematic approach to identifying hazards and evaluating the extent of associated risk
      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Unsafe Workplaces
      Can be identified by:
      • High accident/injury rates.
      • Poor machinery guarding.
      • Poor cleaning and housekeeping arrangements.
      • Limited interest of OHS by employers/management.
      • Lack of care/respect for safety rules.
      • Poor safety culture.
      Department of Design & Manufacturing Technology
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      Safe Workplaces
      Can be identified by:
      • Regular inspection of workplace
      • Consultation between employer and employees.
      • Clearly defined structure of responsibilities….
      • Employees are trained…
      • Exceeds the specific requirements of the law – manages safety not for fear of being reprimanded but for the employees.
      Department of Design & Manufacturing Technology
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      Safety Management
      The Key steps of any Health & Safety Management scheme are:
      Policy
      Hazard identification
      Risk Assessment
      Control Measures.
      Recording Findings (Safety Statement)
      Monitoring, Review and Auditing
      Department of Design & Manufacturing Technology
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      Required Reading
      Department of Design & Manufacturing Technology
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      The Safety Management Process
      Department of Design & Manufacturing Technology
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      Health & Safety Policy
      Department of Design & Manufacturing Technology
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      Health & Safety Policy
      Department of Design & Manufacturing Technology
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      More information can be found by
      consulting manufacturer’s manual
      Department of Design & Manufacturing Technology
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      Health & Safety at Work Act 2005
      Pg. 30 of Health & Safety at Work Act 2005
      Department of Design & Manufacturing Technology
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      Identify Hazards (Hazard Identification)
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      Common Machinery/Mechanical Hazards
      Department of Design & Manufacturing Technology
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      Wrap Point: (Entanglement)
      Department of Design & Manufacturing Technology
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      Shear Point and Cutting Hazards
      Department of Design & Manufacturing Technology
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      Crush Points
      Department of Design & Manufacturing Technology
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      Ejection Hazards
      Department of Design & Manufacturing Technology
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      Other Hazards
      Department of Design & Manufacturing Technology
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      Hazards
      Department of Design & Manufacturing Technology
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      Classroom Risk Assessment:
      • You will need to develop a template for your lesson riskassessment.
      • Strategies will need to be developed to:
      • Reduce or eliminate risk
      • Demonstrate safe use of machine(s)
      • Teach key learning points relating to machine or process
      • Assess and record pupil learning and competence
      • Ensure adequate supervision of activities
      Department of Design & Manufacturing Technology
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      Room Layout
      Department of Design & Manufacturing Technology
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      Room Layout
      Department of Design & Manufacturing Technology
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      Room Layout
      Department of Design & Manufacturing Technology
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      Room Layout
      Department of Design & Manufacturing Technology
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      Assess Risk (Risk Assessment)
      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Risk Magnitude
      Department of Design & Manufacturing Technology
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      Risk Assessment
      Department of Design & Manufacturing Technology
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      Difference Between A Hazard & Risk
      • Hazard
      • means anything that can cause harm (eg chemicals,electricity, working from ladders, etc)
      • Risk
      • is the chance, high or low, that somebody will beharmed by the hazard.
      Department of Design & Manufacturing Technology
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      Hierarchy of Risk Control
      Eliminate the Hazard Completely.
      Substitute Hazard with a safer alternative.
      Isolate the Hazard.
      Use engineering controls to reduce risk at the source (Guarding).
      Provide training on how to avoid risks.
      & if all that fails…
      Use PPE.
      Department of Design & Manufacturing Technology
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      Importance of being able to Assess Risk
      Department of Design & Manufacturing Technology
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      Risk Assessment Considerations
      • Exposure to hazard
      • Very Infrequent (< once per annum or less)
      • Quite Infrequent (annually/biannually)
      • Frequent (quarterly/monthly)
      • Quite Frequent (weekly/daily)
      • Highly Frequent (continuous daily)
      Department of Design & Manufacturing Technology
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      Risk Assessment Considerations
      • Likelihood
      • Highly Unlikely (practically impossible)
      • Quite Unlikely (conceivable but very unlikely)
      • Likely (conceivable and could possibly happen)
      • Quite Likely (almost certain to happen)
      • Highly Likely (certain to happen)
      Department of Design & Manufacturing Technology
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      Risk Assessment Considerations
      • Consequences
      • Minor Injury/Ill Health ( minor cuts, abrasions etc.)
      • Injury/Ill Health (burns, sprains, minor fractures etc.)
      • Serious Injury/Ill Health (breaks, deafness etc.)
      • Major Injury/Ill Health (amputations, cancer, multiple breaks etc.)
      • Fatality (one or more fatalities)
      Department of Design & Manufacturing Technology
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      Factors Effecting Likelihood & Occurrence
      Individual Factors
      • Knowledge
      • Skills
      • Training
      • Experience
      • Attitude
      • Motivation
      • Risk perception
      • Mental condition
      • Physical condition
      • Accident proneness
      Department of Design & Manufacturing Technology
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      Factors Effecting Likelihood & Occurrence
      Task factors
      • Emergency arrangements
      • Training/ information/ instruction
      • Supervision
      • Communications
      • PPE
      • Condition of equipment/tools
      • Maintenance regime
      • Guarding/hazard controls
      • Workload
      • Patterns of work
      Department of Design & Manufacturing Technology
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      Factors Effecting Likelihood of Occurrence
      Department of Design & Manufacturing Technology
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      Risk Magnitude Matrix
      Department of Design & Manufacturing Technology
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      Which Poses the Greatest Risk?
      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Risk Magnitude Matrix
      Department of Design & Manufacturing Technology
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      CLASSROOM MANAGEMENT: Health & Safety…
      Department of Design & Manufacturing Technology
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      Supervision & Access
      • Students should only work in a high risk area when it is fully under the control of a person competent to work in and supervise that area.
      • Close monitoring of students using machinery.
      • Students must not be permitted to use equipment while unsupervised.
      • It is the responsibility of the schools to ensure that the machines are not accessible to unauthorised persons
      • Cleaners
      • Visitors
      • Unsupervised students.
      Department of Design & Manufacturing Technology
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      Supervision & Access
      Department of Design & Manufacturing Technology
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      Supervision & Access
      Department of Design & Manufacturing Technology
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      Exclusion Zones
      • An assessment of each workshop should be carried out in order to determine the safe operational area around each machine.
      • Hard wearing and clearly visible markings should be set down on the floor to indicate these safe operation areas.
      • If necessary, machines should be moved to accommodate this safe operational area.
      Department of Design & Manufacturing Technology
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      Emergency Isolators and Emergency Stops
      Department of Design & Manufacturing Technology
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      Start/Stop
      • Are there appropriate start / stop controls ?
      • Location
      • Colour
      • Flush mounted
      • Mushroom head
      • Turn release
      • Key release
      Department of Design & Manufacturing Technology
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      Start/Stop
      Stop control must have priority over the Start control.
      Start Control
      • Flush
      • Recessed
      Stop Control
      • Mushroom Head
      • Push Bar
      Department of Design & Manufacturing Technology
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      Emergency Stop
      Some machines may have two stopping devices.
      Hand Operated
      Foot/Knee Operated
      Department of Design & Manufacturing Technology
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      Material Preparation
      Department of Design & Manufacturing Technology
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      Guarding
      Machine guards must:
      • Be of robust construction.
      • Not give rise to any additional hazard.
      • Not be easily removed or rendered inoperative.
      (Removed with the use of a tool)
      • Be situated a sufficient distance from the danger zone.
      • Not restrict more than necessary the view of the operating cycle of the equipment
      Department of Design & Manufacturing Technology
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      Lighting
      Department of Design & Manufacturing Technology
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      Push Sticks
      Department of Design & Manufacturing Technology
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      Maintenance of Machinery
      Department of Design & Manufacturing Technology
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      Preventative Maintenance
      Department of Design & Manufacturing Technology
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      Maintenance Records
      Department of Design & Manufacturing Technology
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      Inspection of Machinery
      Department of Design & Manufacturing Technology
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      Inadvertent Starting
      Department of Design & Manufacturing Technology
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      Machinery Rundown Time
      Department of Design & Manufacturing Technology
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      CE Mark
      The CE Marking is not a mark indicating conformity to a standard but rather a mark indicating conformity to the legal requirements of EU Directives.
      Department of Design & Manufacturing Technology
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      CE Mark
      • CE Marking is the symbol as shown on the top of this page.
      • The letters "CE" are the abbreviation of French phrase "Conformité Européene" which literally means "European Conformity".
      • The term initially used was "EC Mark" and it was officially replaced by "CE Marking" in the Directive 93/68/EEC in 1993.
      Department of Design & Manufacturing Technology
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      CE Mark
      • Machinery must bear the “CE” mark in order to be deemed in compliance with these regulations.
      • Must not add to machinery – must be there… criminal offence to try to add it.
      • Also an offence to reduce the visibility of the “CE” Marking on a machine.
      Department of Design & Manufacturing Technology
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      CE Mark
      The existence of the “CE” marking on a piece of machinery should indicate that its manufacturer has met all relevant standards and requirements.
      Department of Design & Manufacturing Technology
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      CE Mark
      Never assume that machinery is safe just because it has a “CE” marking
      Department of Design & Manufacturing Technology
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      Emergency/
      Permission
      Mandatory/Action
      Warning/Caution-Danger
      Regulatory/
      Prohibited
      Department of Design & Manufacturing Technology
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      Surface Planer
      Department of Design & Manufacturing Technology
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      Surface Planer
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      Department of Design & Manufacturing Technology
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      Step 1:
      Isolate machine
      Out feed Table
      Step 2: Squaring guide fence
      • Set up surface planer guide fence @ 90⁰ to table surface
      • Note infeed and outfeed table.
      • Square to infeed using right angle square.
      • Use red lock handles to open and adjust fence.
      • Lock gently when fence is perpendicular to infeed table.
      Infeed Table
      Department of Design & Manufacturing Technology
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      Step 3: Setting infeed dept
      • This machine is calibrated in metric.
      • Maximum recommended material removal is 1-2mm/pass
      • Dept stop to be set at 2mm
      • Open infeed lock handle
      • Turn wheel to left to drop table to 2mm
      • Lower you drop, the more the planer cutting block is exposed
      • Close infeed lock handle when required dept is achieved.
      • * Do not adjust outfeed table level, this is for maintenance purposes only*
      Infeed
      Infeed
      Department of Design & Manufacturing Technology
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      Step 4: Setting the guide fence width
      • Minimum blade exposure
      • Width of material + 10mm is recommended
      • This results in 10mm blade exposure - Safety
      • Adjust lock handle to wind in or out guide fence
      • Lock in appropriate position
      Department of Design & Manufacturing Technology
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      Step 5: Guard adjustment
      • Guard set for face side = handle up – 10mm blade exposure
      • Guard set for face edge = handle flat – no blade exposure
      Department of Design & Manufacturing Technology
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      Step 6: Material Inspection
      • Inspect material for the following defects
      • Cupping
      • Bowing
      • Twist
      • Knots
      • Loose grain
      • Example - if material is bowed, set the bowed face to the surface planer table surface and process. Material should never be run through hump side down.
      Department of Design & Manufacturing Technology
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      Step 7: Determining face side and face edge
      • Use machine surface to check square
      • Select appropriate face side and face edge based on inspection
      • Preliminary surface marking using an ‘X’ with no less than a HB pencil
      • Ensure extraction gate valve is open and extraction is on
      • Proceed to plane material – face side and face edge only!
      Gate Valve locate on extractor pipe just above surface planer
      X
      X
      Department of Design & Manufacturing Technology
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      Step 8: Planing face side
      • Material position
      • Hand positions
      Dept of Hand
      Dept of Hand
      Ensure Guard Guide is in a vertical position to plane face side
      Department of Design & Manufacturing Technology
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      Note Hand Positions in relation to material
      Department of Design & Manufacturing Technology
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      Step 9: Planing face edge
      • Material position
      • Hand position
      Dept of Hand
      Dept of Hand
      Ensure Guard Guide is in a horizontal position to plane face edge
      Department of Design & Manufacturing Technology
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      Note Hand Positions in relation to material
      Split second blade Exposure
      Blade guard flat onto table
      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Thicknesser
      Department of Design & Manufacturing Technology
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      Thicknesser
      Department of Design & Manufacturing Technology
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      Delta Switch
      Stop/Start
      Lab sequence – Thicknesser
      Step 1:
      Unlock twist release stop mechanism
      Press green button to start
      Allow machine to build up, this can be determined by noise consistency
      When noise is consistent flip delta switch to on position
      Feed rate, i.e. Speed at which material is passed, is set.
      Adjust table height as required
      Feed material as directed
      Twist Release Stop
      Display Panel
      Thicknesser Bed Adjustment Control
      Feed Rate Control
      Department of Design & Manufacturing Technology
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      Department of Design & Manufacturing Technology
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      Step 4: Rip Saw
      Department of Design & Manufacturing Technology
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      Step 4: Rip Saw
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      Step 4: Rip Saw
      Department of Design & Manufacturing Technology
    • OUTFEED
      TABLE
      SLILDING
      TABLE
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      Step 4: Rip Saw
      Department of Design & Manufacturing Technology
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      Step 4: Rip Saw
      Cross Cutting
      Ripping
      Department of Design & Manufacturing Technology
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      Step 4: Rip Saw – Ripping Material
      Mark Line across end grain:
      Horizontal when cutting
      Vertical when planing
      #NB: Ensure correct use of PPE and push sticks are practiced.
      Department of Design & Manufacturing Technology
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      Step 4: Rip Saw – Ripping Material
      Department of Design & Manufacturing Technology
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      Refer back to your cutting list to make sure you cut pieces to the correct length.
      After the material has been ripped and surface planned into correct / required sizes, you then have to cross-cut the sections to the required length. For this, you will have to set up the fence on the sliding table to achieve this.
      Department of Design & Manufacturing Technology
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      #NB: Ensure guards and guides are set-up and used correctly and safely.
      Department of Design & Manufacturing Technology