50-420-728Basic Stamping Diemaking for Machine Trades Apprentices
Course Information
Description
This course introduces the apprentice to the basics of stamping and diemaking. Topics include the basic terminology, blanking, piercing, bending and related basic operations. In addition learners will discover the basics of the theory and background knowledge related to stamping and die making.  This course was formerly module 18 in related instruction for tool and die, stamping die and mold makers. FY14-15 statewide apprenticeship curriculum development GPR grant funded project is underway at this time. Program is under construction and please check back soon.  Education Director:  Nancy Nakkoul.  WIDS Consultant:  Hal Zenisek.
Total Credits
1
Course Competencies
  1. Communicate using stamping terminology
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice labels a drawing of a stock strip, stamping die, press, and part piece selected by the instructor
    apprentice uses references and resources efficiently
    apprentice identifies press and stamping components
    apprentice explains press and stamp component operations
    apprentice drawing labels are 100% accurate

  2. Perform calculations required to develop a piece part
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice develops a piece part using blanking and/or pietcing principles
    apprentice uses reference, resources, charts and a calculator efficiently
    apprentice identifies material type and condition
    apprentice computes the enlargement of a diie opening due to resharpening
    apprentice calculates cutting and stripping forces to within 90% accuracy
    apprentice differentiates between a blanking die and a piercing die with regard to cutting clearance calculations and modifications with 100% accuracy
    apprentice determines the correct amount of cut band clearance from illustrations
    apprentice determines burr side location
    apprentice explains shearing action
    answers are clear and concise
    answers are neat and readable
    apprentice submits work for review and feedback by the instructor

  3. Perform blanking and piercing die calculations
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice calculates punch and die requirements
    apprentice uses reference, resources, charts and a calculator efficiently
    apprentice explains the sequence of blanking die construction
    apprentice calculates die opening and puch diameter to within 10% of actual
    apprentice calculates rectangular die opening to within 10% of actual
    apprentice calculates punch length and width to within 10% of actual
    apprentice calculates cutting and stripping forces to within 10% of actual
    answers are clear and concise
    answers are neat and readable
    apprentice submits work for review and feedback by the instructor

  4. Calculate bend allowances
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice creates a drawing with written explanations for a simulated bend
    written explanation shows calculations for the radius for the die fillet method of corner setting to within 10% of actual
    written explanation shows calculations for minimum distance between a hole and a bend line to minimize distortion to within 10% of actual
    written explanation shows calculations for flat blank length to within 10% of actual
    written explanation describes lateral forces imposed on a die during bending and lists two ways to counteract this
    written explanation lists three methods of corner setting
    written explanation lists two key factors that determine bend severity
    written explanation lists two ways to overcome springback
    written explanation describes the importance of grain direction
    the drawing has parts of the bend labeled
    the drawing includes two sketches of ways to activate and retain the pad
    the drawing includes sketches of tew methods to remove a part from a punch
    answers are clear and concise
    answers are neat and readable
    apprentice completes submits work for review and feedback by the instructor

  5. Develop stock strip layouts
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice interprets stock strip layouts and piece part dimensions selected by the instructor
    written explanation includes at least one example of both single-pass and double-pass layout
    written explanation shows calculations for materials use efficiency for wide vs narrow run piece part orientation
    written explanation defines these stock strip conditions: edgewise curvature, longitudinal bow, crown, dish
    written explanation explains one problem associated with each of these stock strip conditions: edgewise curvature, longitudinal bow, crown, dish
    written explanation describes how grain direction affects part strength
    written explanation describes the function of a stock strip
    written explanation shows calculations of scrap web width to within 10% of actual
    written explanation lists two ways to overcome springback
    the drawing shows interposed blank orientation
    the drawing shows interlaid blank orientation
    the drawing shows a three-row stock strip layout for a round piece part
    the drawing shows calculations for advance disyance and stock strip width to within 10% of actual
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  6. Apply fasteners to die construction
    Assessment Strategies
    Stamping Die Worksheet with drawing
    Criteria
    apprentice creates a drawing with written explanations for fastener applications determined by the instructor
    written explanation explains application of dowels, semi-blind dowels, blind dowels, relieved dowels with 100% accuracy
    written explanation compares the use of shoulder screws to the use of stripper bolts
    written explanation shows calculations for minimum spacing of holes from edges of machine steel and tool steel parts
    written explanation names six point styles for set screws with an example of as use for each
    written explanation describes methods for hole transfer
    written explanation describes methods for cleaning tapped holes after heat treat
    drawing shows tap-drill size required based upon thread engagement
    drawing shows minimum thread engagement
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  7. Illustrate the design and construction of die blocks
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice creates a drawing with written explanations for application of die blocks selected by the instructor
    written explanation includes a definition of "die blocks" to 90% accuracy
    written explanation describes the use of sharpening lands
    written explanation describes the primary reason for putting shear on a cutting die
    written explanation names at least three advantages for assembling die blocks in slots or packets
    written explanation names at least two reasons for using inserts in die block construction
    written explanation describes cases where cross-bolted die blocks might be used
    written explanation describes at least three advantages of using commercial die buttons
    drawing shows sharpening lands
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  8. Illustrate the design, construction, and applications of punches
    Assessment Strategies
    Stamping Die Worksheet with drawing exercise/activity
    Criteria
    apprentice creates a drawing with written explanations for application of die blocks selected by the instructor
    written explanation lists three punch categories and give at least three examples in each category to 100% accuracy
    written explanation describes the two punch groups and describes their construction to 100% accuracy
    written explanation describes three advantages of plain punches
    written explanation names three advantages and three disadvantages for pedestal punches
    written explanation describes at least two methods for transferring screw holes from a punch to a die
    drawing shows positioning bosses
    drawing shows hole locations
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  9. Illustrate the functions of punch plates
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice creates a drawing with written explanations for application of die blocks
    drawing includes three types of perforator punches
    drawing has parts labeled
    written explanation states two functions of a punch plate
    written explanation states the purpose of keyed punches
    written explanation describes three keying techniques
    written explanation describe the purpose of floating punches
    written explanation describes two methods of slug ejection
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  10. Compare the function of pilots
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice labels drawings and gives brief summary explanations
    apprentice determines punch size and degree of accuracy
    apprentice computes clearance between stock strip hole and a pilot within 10% accuracy
    apprentice explains the functions of pilots in stamping dies
    apprentice describes 4 pilot nose profiles and the most appropriate application for each
    apprentice labels 8 methods for mounting pilots or punch holders on a drawing
    apprentice determines if pilots are direct or indirect on a drawing
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  11. Select a stripper and stock guide
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice selects a stripper and stock guide
    apprentice interprets production information
    apprentice explains how they considered material type in their selection
    apprentice explains how they considered stripper type in their selection
    apprentice explains how they considered spring confinement in their selection
    apprentice explains how they considered clearances in their selection
    apprentice selects an appropriate stripper and stock guide for the situation given them
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  12. Calculate die spring pressures
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice identifies specific stripping job requirements
    apprentice calculates spring pressure to within 10% of actual required
    apprentice shows calculations
    apprentice considers material type and spring type
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  13. Illustarte the use of knockouts and shredder pins
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice creates a drawing with written explanations for applications of die blocks selected by the instructor
    drawing includes examples of shredder pins
    drawing has direct and indirect knockouts labeled
    written explanation states the function of a knockout
    written explanation compares the functions of a forming pad and a shredder
    written explanation describes three methods of activating knockouts
    written explanation describes the functions of a shredder on a stamping die
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  14. Illustrate the functions of die stops
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice creates a drawing with written explanations for application of die blocks selected by the instructor
    drawing includes stop position
    drawing includes over feed position
    drawing includes registry position
    drawing includes advance mechanism
    written explanation states the function of a die stop
    written explanation compares various stop designs
    written explanation describes the differences between various stops
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  15. Designate die set specifications
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice specifies die sets for a given application and set of job parameters
    apprentice can identify all die set components to 100% accuracy
    apprentice defines working area and shut height to 100% accuracy
    apprentice designates specifications for the guide posts to 100% accuracy
    apprentice designates specifications for the guide bushings to 100% accuracy

  16. Analyze forming and drawing processes
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice participates in a discussion concerning various examples of drawn die products
    apprentice brings in three different examples of drawn die products from home or work
    apprentice references sources of information used in the discussion
    in discussion the apprentice identifies three distinct examples of drawn parts
    in discussion the apprentice's makes accurate points relevant to the three drawn parts
    in discussion the apprentice includes relevant references to drawn part production such as the process used to develop a blank for a part
    in discussion the apprentice can define the function of a shearform
    in discussion the apprentice can clearly state the difference between bending and forming in the context of die making
    in discussion the apprentice uses acceptable language
    apprentice summarizes key discussion points in writing, and submits work for review and feedback by the instructor

  17. Summarize punch press operations
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice writes a brief discription of die press applications
    apprentice interprets a die print selected by the instructor
    discription includes nomenclature
    discription includes the four basic types of presses
    discription includes press operation
    discription shows the relationship of strokes per minute to the operation being performed
    description includes explanation of the operation of hitch feed, mechanical side feed, roll feed, air slide
    description includes a selection of appropriate press size for a given die print

  18. Illustrate the applications of progressive dies
    Assessment Strategies
    Stamping Die Worksheet
    Criteria
    apprentice creates a drawing with written explanations for applications of progressive dies
    apprentice uses references and resources efficiently
    drawing shows calculations for cutting force
    drawing shows calculations for cutting clearance
    drawing includes labels to 100% accuracy
    written explanation describes the differences between three stamping techniques
    written explanation describes advantages of using wire EDM to construct solid die blocks as compared to sectional techniques
    written explanation lists the fourteen steps in designing a progressive die (reference "Die Design Fundamentals"
    answers are clear and concise
    answers are neat and readable
    apprentice completes related worksheet questions and submits work for review and feedback by the instructor

  19. Compare types of dies and die processes
    Assessment Strategies
    Oral, Written or Graphic Assessment and/or
    Stamping Die Worksheet
    Criteria
    apprentice uses terms accurately
    apprentice applies concepts correctly
    apprentice references resources
    apprentice completes worksheet on time
    apprentice submits worksheet to the instructor for review and approval
    work is complete
    work is accurate
    work is grammatically correct and error free
    answers are clear and concise
    answers are neat and readable
    apprentice relates the competency to given specifications