8 introduction to work study by 2y3ItQ

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									Gilbreth Motion Study
         (Brick Laying Study)
Taylor   Time Study or
         Work Measurement
         (Pig Iron Study)       1
                 ออกแบบ         ระบบการทางาน          คน วัตถุดบิ
  เทคนิคการ      ปรับปรุง       ร่ วมกัน ระหว่ าง     เครื่องจักร
                  ติดตั้ง                              พลังงาน

                 คณิตศาสตร์
                 วิทยาศาสตร์                แสดง
โดยใช้ ความรู้   สั งคมศาสตร์                            สิ่ งที่ได้ จาก
                                     ่
                                  เพือ     คาดคะเน
                     ทักษะ                              ระบบงานนั้น
                 ประสบการณ์
                                          ประเมินผล
                 การวิเคราะห์                                         2
• Make life easier and more comfortable

• Get job done completely and faultless

• Get people achieve higher level of living
  standard


                                              3
• Problem Solving

• Process Analysis

• Operation Analysis

• Micromotion Study

• Time Study (Work Measurement)

• etc.. such as Applied Statistics   4
      Knowledge dealing with the systematic
determination of a preferable work method with
the time required for the uses of human and
equipment to perform such work as well as a
development of material & tools to make the
established method and time practical
                                                 5
    Procedure to describe, systematic analyze
and improve work method

                   Thus consider
       Method
     Engineering
                   • Work process
                   • Raw materials
                   • Design of the output
                   • Workplace, tools, equipment
                     at each step of the work process
                   • Human activities                   6
  เวลาสู ญเปล่าเนื่องจากความบกพร่ อง
            ั
  ของผู้ปฏิบติงาน
  เวลาสู ญเปล่าเนื่องจากความบกพร่ อง
  ในการจัดการ และควบคุม
      ่ ้
งานเพิมขึนเนื่องจากกระบวนการผลิตไม่ ดี

      ่ ้
งานเพิมขึนเนื่องจากออกแบบไม่ ดี

งานส่ วนที่จาเป็ น                       7
Scope of Work Study




                      8
Process Analysis
Operation Analysis
(Micro) Motion Study
Time Study
Work Instruction Establishing
                                9
 Effectively collect information about the work

Process Analysis
Process Chart            Operation Analysis
Flow Diagram
                              Man-Machine Chart
Gang Process Chart
                                 Operation Chart
                            Layout of work place
                                              10
Operation



Inspection



Transportation   Transportation


Storage             Delay

                                  11
• Separately constructed for
  Man - Machine - Material Flows

• Process Chart and Flow Diagram are
  complementary

• Always complete all chart headings &
  summary table
                                       12
Process Chart (Flow Process Chart)
  Flow Process Chart
                                                      Pag e     of


  Chart type:    Operator   Material   Machine           Summary            Present      Propo sed   Savings

  Method:        Present    Proposed                      Operation
  Date:                                             Trans port ation
  Activity:                                              Inspection
  Location:                                                    Delay
  Operator Name / No.                                        Storage
  Departm ent:                                    Total time (min)
  Analyst:                                       Dis tance (m . / feet)

  Event De scription                             Symbol              Time     Distance      Recommendation




                                                                                                               13
Flow Diagram




               14
Gang Process Chart




                     15
• Record motions of Left - Right hands

• Only     ‘in-work’
                  and    ‘in-move’

• No time recorded

                                         16
Operation Chart




                  17
Man-Machine Chart
Man - Machine Chart                                               Page   of
Operation / Part                         Summary                 Man     Machine
Operator Name / No.                      Working Time
Analyst                                  Idle Time
Date                                     Cycle Time
Method: Present        Proposed          Utilization ratio

                      Man         Time                 Machine            Time




                                                                              18
Layout of Workplace




                      19
20
What are revealed information?
   • time consumed
   • transportation distance
   • required man-hour

                  What Next ?
                                 21
   How to develop a better method
• Graphic Tools for the analysis
• 5W + 1H Questions
• ECRS
• Checklists
• More details: Micromotion study
                                    22
What is done?   ? Why should it be done

Who does the work?       ?   Why does she do it

                                  Why should it
Where is the work done?       ?   be done here

When is the work done?            Why should it be
                              ?   done this time

How is the work done?         ?   Why is it be done
                                  this way       23
Output of the questions…s

    Objectives of the work

    Creativity:
         Could any other people do this
    work better in other place, at other time,
    using other method?
                                           24
                           Along with 5W1H,
                               TRY US!

E eliminate all unnecessary work

C combine operations (elements of work)

R rearrange sequence of operations

S simplify the necessary operations
                                              25
                                   Operation



• Improve the equipment performance
• Is current production lot size too large or too
  small?


           &             at each operation !!!


                                                 26
                                     Transportation


•   Create              and

•   Change the layout to eliminate distance

•   Increase the lot size per trip

•   Do the loading & unloading time take too long?

•   Improve transportation equipment


          &                 at each transportation !!!   27
                                     Inspection


•   Create

•   Improve inspection method

•   Are the quality inspections and volume
    inspections being done at separate processes?
    Try to combine the two at the same process


             &           at each inspection !!!     28
                                 and


•   Can we create        to eliminate temporary
    storage?

•   Can retention times be shorten?


              And Finally!
                       &                          29
                      Working
  Materials           conditions


           Machines      Material
Tools                    handling
Jigs
Fixtures         Operators
                                    30
Specialist / External Consultant

            IE / IM

       Line Supervisor

      Front-line Operator          31
Cross functional Cooperation
• Planning and Control
• Maintenance
• Quality Inspection

Laws and Regulations
• Safety
• Labor Relation

Quality / Productivity
                               32
Expenses & Benefit of Study
     •   Extensiveness of task
     •   Life of the task
     •   Labor consideration
     •   Investment
                                 33
Value Engineering

           Achieve the economy of time,
          materials, human effort and money



                                       Ergonomic

            Make the
      necessary human effort
         easier and easier
                                                   34

								
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