Jun 25, 2024  
2018 - 2019 Catalog 
2018 - 2019 Catalog [ARCHIVED CATALOG]

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SKTR 182 - Machine Tools II

Credits: 4

Trains in the set up and operation of  various metal working machines and construction of  projects from engineering drawings. Trains in use of a variety of measuring instruments to take measurements of one thousandth of an inch or closer.  Utilizes safety, mills, lathes, drill presses, saws, grinders, speeds and feeds to complete duty and task list. Credit can be earned in MS 182  or SKTR 182, but not both.

Prerequisite(s): MS 181W  or SKTR 181W  or permission of instructor
Corequisite(s): None
Lecture Hours: 45 Lab Hours: 45
Meets MTA Requirement: None
Pass/NoCredit: No

Outcomes and Objectives 1.    Practice safe working habits.

     A.          Identify proper work attire and personal protection items.

     B.          Demonstrate safe work habits when operating equipment.

     C.          Develop safe work habits using knowledge of safety of self, others, and equipment.

     D.          Locate MSDS for proper storage of materials.

     E.          Locate fire extinguishing equipment and know how to apply to fire.

 2.    Measurement & Inspection

     A.          Demonstrate the proper use and care of measuring tools.

     B.          Recognize various measuring tools.

     C.          Accurately measure to a tolerance of .001" or smaller.

     D.          Define, identify, and understand limitations and advantages of various measuring tools.

     E.          Make conversions from inch to metric.

     F.           Identify, define and properly use comparison measuring instruments such as telescoping gages, squares, spring calipers, small hole
                   gages, radius gage, etc.

     G.         Identify dial and test indicators, accessories, setup procedures and limitations.

     H.         Identify and correctly use vernier, dial, digital measuring tools such as calipers and height gages.

     I.          Identify components, calibrate and correctly use micrometers, outside, inside, pitch, depth, etc.

    J.          Identify gage blocks series and sizes found in a standard gage block set.  Understand how to calculate gage block buildup for measurement
                 and sine bar use.

3.    Understand basic layout techniques

     A.          Identify and select proper layout tool for a given task.

     B.          Demonstrate proper care and handling of layout tools.

     C.          Apply layout dye to identified surfaces.

     D.          Make semi precision layout lines to tolerances of +/- 1/64 inch.

     E.          Blend radius to line with minimum line run on.

4.    Bench work and hand tools

     A.          Identify and develop a working knowledge of files, including basic shapes and cuts; a file card; both machinists' and soft faced hammers;
                   prick punches; center punches; knockout  pins; a hand hacksaw; and adjustable, box, and open end wrenches in general shop operations.

     B.          Identify common taps.

     C.          Select taps for specific applications.

     D.          Identify dies used for hand threading.

     E.          Understand procedures for using hand reamers.

5.    Machine maintenance

     A.          Identify and demonstrate proper care of machinery.

     B.          Identify and use maintenance and operators manual to locate maintenance schedule for machinery.

     C.          Locate and fill machine lubricant reservoirs.

     D.          Identify possible unsafe machine conditions and proceed to lock-out tag-out procedures.

 6.    Pedestal Grinders

     A.          Develop and use safe work habits, guards, and other protective devices on the floor grinder.

     B.          Identify the types of floor grinders.

     C.          Dress and true the grinding wheel.

     D.          Position the tool rest and safety shield.

     E.          Hand grind proper clearance angles on cutting tools for drilling and turning.

7.    Sawing Machines

     A.          Develop and use safe work habits, guards, and other protective devices on sawing machines

     B.          Identify the major parts of the vertical and horizontal band cut off machines.

     C.          Know saw blade terminology.

     D.          Properly use the vertical and horizontal band cut off machines.

     E.          Perform the necessary maintenance to maintain the equipment including hub lubrication and necessary oil levels.

     F.          Interpret prints, follow operational steps and saw parts to print specifications.

     G.         Adjust blade speed for type of material being cut.

8.    Drilling Machines

     A.          Develop and use safe work habits, guards and other protective devises on the drilling machine.

     B.          Identify the types and uses of the tool room drill presses.

     C.          Identify types of work holding devises.

     D.          Identify basic cutting tools to include: 1) straight and taper shank twist drills, 2) reamers, 3) counter-bores and counter-sinks.

     E.          Identify drill cutting tool materials and types to include high speed steel and solid tungsten carbide.

     F.          Know the nomenclature of the twist drill.

     G.         Identify and know the use of special drills.

     H.         Calculate and set the drill press for the correct speed and feed rate.

     I.           Properly sharpen a twist drill on a pedestal grinder.

     J.          Interpret prints, follow operational steps, and effectively utilize the drill press to machine parts to print specifications.

     K.          Perform basic drill press operations to include: 1) through hold drilling, 2) drilling to depth, 3) reaming, 4) spot facing and counter-boring, 5)
                   countersinking and chamfering, 6) tap drilling for a specified percentage of thread.

9.    Tool Room Lathe

     A.          Develop and use safe work habits, guards, and other protective devices on the lathe.

     B.          Identify the sizes, parts, accessories, and lubrication points of the tool room lathe.

     C.          Determine and use the proper lubricant as recommended by the lathe manufacturer.

     D.          Select and make correct set ups on the lathe, to include 3-jaw and 4-jaw chuck mounting, drive plate, collets, headstock sleeve and center,
                   tail stock center, drill chuck and tool holders.

     E.          Interpet prints, follow opeational steps, and effectively utilize the lathe to machine parts to print specifications.

     F.          Correctly grind and condition lathe cutting tools.

     G.         Make calculations and set the lathe for the correct speed, feed rate, and depth of cut.

     H.         Identify lathe cutting tool materials such as high speed steel, carbide, cutting tools, shapes, and tool geometry.

 10. Vertical/Horiztonal Milling Machines

     A.          Develop and use safe work habits, guards and other protective devices on the mill.

     B.          Correctly identify the types and uses of the vertical/horizontal milling machines.

     C.          Know how to use various tool holding devises to include: 1) collets, 2) quick change tool holders, 3) arbors, 4) drill chucks.

     D.          Know the nomenclature of the milling machine, including the axis identification.

     E.          Know all the lubrication points on the various vertical/horizontal milling machines in the shop.

     F.           Determine and use the proper lubricant as recommended by the manufacturer.

     G.          Make correct set ups on the vertical/horizontal mill to include: 1) tram in mill head, 2) mount and indicate vise parallel to ways, 3) mounting
                   and positioning work piece, 4) spindle roatation, 5) feeds, speed, and depth of cut.

11. Jigs and Fixturing

     A.          Identify and decipher between a jig and fixture.

     B.          Understand the major components of a single and production type fixture or jig.

12. Flat surface grinder

     A.          Develop and use safe work habits, guard and other protective devices commonly associated with surface grinders.

     B.          Identify the types and sizes of flat surface grinders.

     C.          Select and install proper grade of wheel for grinding material.

     D.          Dress grinding wheel flat and parallel.

     E.          Use a variety of work holding devices to include: 1) magnetic chuck, 2) angle plate, 3) sine plate, 4) no twist clamps, 5) hold down blocks.

     F.          Grind a part to print specifications for tolerance and surface finish.

     G.         Recognize, trouble shoot and correct common difficulty associated with surface grinding.

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