COMPETENCY ANALYSIS PROFILE GENERAL MACHINIST 429A (All unshaded skill sets must be demonstrated/completed) SKILL SETS SKILLS PROTECT SELF AND OTHERS Identify health and safety hazards. Wear, adjust, and maintain personal protective Wear, adjust, and maintain respiratory protectors. Practise safe work habits. Follow fire procedures. 5230.0 523001 Operate emergency safety 5230.02 Practise industrial hygiene. 5230.03 housekeeping in the workplace. 5230.04 Conduct preoperational check of 5230.05 Report injuries. 5230.06 Follow procedures for applying first aid. 5230.07 Lock out mechanical 5230.08 Handle designated substances. 5230.09 Operate lifting 5230.10 5230.11 5230.12 5230.13 5230.14
PLAN AND PREPARE FOR MACHINING JOB Read and interpret engineering drawings. Perform calculations for machining operations. Read and interpret workprocess Verify workpiece material. select cutting fluids. 5231.0 5231.01 select machines. 5231.02 check machine controls and systems. 5231.03 select tooling. 5231.04 prepare cutting tools. 5231,05 select measuring instruments and checking devices. 5231.06 Select machine speeds and feeds. 5231.07 Lay out features of engineering drawings. 5231.08 select workholding devices. 5231.09 Pick up datum/starting. 5231.10 select lifting and rigging 5231.11 Communicate with co-workers. 5231.12 5231.13 5231.14 5231.15 5231.16 WORK-IN- PROCESS DIMENSIONAL OR SURFACE VERIFICATION Check straight cuts. Check shapes. Check threads. Check holes. Check tapers. 5232.0 5232.01 Check hardness. 5232.02 Deburr 5232.03 5232.04 Check surfaces. 5232.05 5232.06 5232.07 5232.08 5232.09 5232.10 5232.11
BENCHWORK Hand-file. Hand-saw. Hand-drill holes. Hand-tap threaded holes. Hand-ream. 5233.0 5233.01 Chase threads. 5233.02 Hand-grind. 5233.03 5233.04 5233.05 5233.16 5233.07 5233.08 SAWING Check fused/welded blade. Lay out features of engineering drawings. workpiece in saw. feeds of saw. Install and test-run blade. 5234.0 Check first cut-off. 5234.01 5234.02 Cut shapes using a vertical bandsaw. 5234.03 Cut squared and angled surfaces using a power cut-off saw. 5234.04 5234.05 Deburr 5234.06 5234.07 5234.08 5234.09 Move workpiece. 5234.10 5234.11 5234.12 5234.13 5234.14
DRILLING USING DRILL PRESS/ MACHINE Select drill tooling. prepare cutting tools for drills. workpiece in drill. Set up tooling in drills. feeds of drill. 5235.0 5235.01 Centre-drill a layout punch mark. 5235.02 Drill a hole. 5235.03 Chamfer a hole. 5235.04 Ream a hole. 5235.05 Machine-thread a hole. 5235.06 Spot-face a hole. 5235.07 Counter-bore a hole. 5235.09 Counter-sink a hole. 5235.09 5235.10 Deburr 5235.11 5235.12 5235.13 5235.14 5235.15 5235.16 5235.17 5235.18 5235.19 MACHINE GRINDING Select grinding wheel. Check condition of grinding wheel. Install grinding wheel. workpiece in grinder. Surface grind 5236.0 5236.01 5236.02 5236.03 Hone holes Lap workpiece Grind inside and outside diameters. (ID/OD) 5236.04 Grind tools and cutters. 5236.04 Check ground surfaces. 5236.05 5236.06 5236.07 5236.08 housekeeping. 5236.10 5236.11 5236.13 5236.14 5236.15
LATHE WORK Select lathe cutting tools. prepare lathe workpiece in lathe. Set up lathe feeds of lathe. 5237.0 5237.01 5237.02 5237.03 5237.04 5237.05 Take a sizing (preliminary) cut. Establish a reference or starting point.(datum) Face a surface. Turn an external diameter. Drill a hole. 5237.06 Bore an internal diameter. 5237.07 Ream a hole. 5237.08 Tap a hole. 5237.09 Turn an internal or external thread. 5237.10 Produce a taper. 5237.11 Knurl cylindrical surface patterns. 5237.12 Groove and part-off. 5237.13 5237.14 Deburr 5237.15 5237.16 5237.17 5237.18 5237.19 5237.20 5237.21 5237.22 5237.23
MILLING Select milling prepare milling Set-up and maintain milling adjustable support tools. Set-up milling feeds of mill. 5238.0 Perform flycutting. 5238.01 Face-mill. 5238.02 5238.03 Machine steps, cut-outs, angles, and open slots. 5238.04 Machine a pocket or slots. 5238.05 Machine a hole. 5238.06 Bore holes. 5238.07 5238.08 Deburr 5238.09 5238.10 5238.11 5238.12 5238.13 5238.14 5238.15 5238.16 5238.17
NC/CNC MACHINING select numerically controlled machining process. Prepare NC/CNC set-up sheet. Input and process program data to machine memory. Determine tool path and calculate coordinates. Identify, select, and set up NC/CNC cutting tools and tooling. 5239.0 Set up NC/CNC 5239.01 5239.02 5239.03 5239.05 5239.05 Identify, select, and set machine parameters. Position and align workpiece in NC/CNC machine. Input and verify part program at NC/CNC machine controls. Store and record verified program. 5239.06 5239.07 5239.08 5239.09 5239.10 Monitor NC/CNC machining process. Verify tool sequence, tool path, and collision avoidance program. Make adjustments to tooling and offsets. 5239.11 5239.12 5239.13 5239.14 5239.15 5239.16 5239.17 5239.18 5239.19