Machining Technician
Performs all types of machining operations to manufacture, modify, and repair aircraft parts, support equipment, tools, and assemblies. Fabricates local manufactured items required for aircraft components. Work includes bending, cutting, forming, casting, cleaning, molding, welding, sawing, machining, and assembling. Lays out work, reads and interprets blueprints and technical publications, designs and draws working sketches, makes special tools, dies, jigs, and fixtures, performs production work of aircraft parts, and works to tolerances varying from.0l0 to .0005 inch. Troubleshoots difficult metal machining designs and fabrication problems. Plans work, taking into consideration the type and numbers of machining/welding operations, machines to be used, and type of set-ups and methods of production such as cutting, milling, grinding, welding, and polishing. Performs shop calculations such as determination of peripheral cutting speeds and settings. Determines metal identity and characteristics by subjecting metals to spark, acid, fire, magnetic, alkaline, heat, quench, and fracture tests. Tests specimens for predetermined requirements of tensile, bend, shear, and impact strength using materials testing machines. Welds ferrous and non-ferrous metals and alloys such as cobalt, chrome, nickel, aluminum, magnesium, and titanium. Welds butt, lap, tee, and corner joints in flat, vertical, horizontal, and overhead working positions. Welds metals and alloys by shielded gas welding (Heli-arc), metallic arc, oxyacetylene, and resistance welding processes. Heat treats metal parts as required. Compares machine parts with drawings, technical orders, or specifications for conformance with established tolerances, fits, and surface finish. Makes precision measurements using micrometer, vernier calipers, dial indicators, and gauges at various dimensions. Inspects tapered surfaces for variations by applying bearing blue and using surface plate. Determines reparability of damaged machine parts, tools, and aircraft components. Tests metals using Rockwell or Brinell hardness testing methods. Conducts training of drill status guard (DSG) members assigned to the shop. Prepares for and participates in various types of readiness evaluations and inspections, mobility, and command support exercises. May be required to perform such additional duties as structural fire fighting, aircraft fire/crash/rescue duty, security guard, snow removal, munitions loading and handling, heavy equipment operator, maintenance of facilities and equipment, or serve as a member of a team to cope with natural disasters or civil emergencies. May be required to be aircraft welder certified. Performs other duties as assigned.
National Guard membership is required. Compatible military grade and assignment required prior to the effective date of placement. This is an excepted service position that requires membership in a compatible military assignment in the employing state's National Guard. Military Grades: Enlisted Minimum Military Grade: E-1/ AB Maximum Military Grade: E-5/ SSgt Compatible Military Assignments: Selectee must be a member of the Arkansas Air National Guard. Upon selection for this position, individual must possess or initiate a National Agency Check with Inquiries (NACI) background investigation. A pre-placement physical is required if not already current. Upon selection, must complete mandatory Full-Time Support (FTS) Training at the Professional Education Center (PEC) within six months of assignment (if applicable, training will be coordinated by the supervisor). Individual must meet all military requirements of the position without creating a grade inversion, as determined by the Human Resources Office (HRO). Technicians will not be militarily senior to their full-time supervisor or wage leader (Grade Inversion). Enlisted members currently at a higher grade than allowed by the position may apply; however, they must administratively reduce prior to appointment and provide confirmation of the reduction to HRO.
General experience: Work involves machining processes and operations to include planning of necessary work sequences, laying out reference points and lines to be followed in the machining processes, planning for and setting up the work in the machine, programming the cutter path, selecting and shaping metal cutting tools and inserts, operating all types of machine tools, and performing precision handwork to fit, finish, and assemble machined parts and equipment. Specialized experience: Experience or training performing the full range of machining operations on most types of conventional or CNC machine tools and their various attachments. Experience or training in planning and lay out work from blueprints, worksheets and other drawings that may have missing or incorrect information. Skill in applying shop mathematics in establishing needed dimensions, such as those required for chasing threads or machining angular surfaces; locating and marking surfaces and angles to be machined. Skill in programming machining operations, setting up and operating CNC machine tools. Knowledge of and ability to apply advanced shop mathematics such as geometric and trigonometric formulas to make computation for laying out work, machining pieces at unusual or compound angles, determining gear ratios pitch, angles and other similar exact or precision dimension.