Grinder, grinds machine tools and cutter to correct specifications by special grinding machines and wheel. Studies drawings and other specifications to understand nature of grinding operation required. Fastens appropriate abrasive wheel to spindle of machine. Mounts cutting tool to be ground on machine using dividing head, jig or fixture as required. Manipulates swivel tables, wheel head and work holding device, guide finger, etc. as necessary to set machine to appropriate angle for grinding desired level on cutting edges of tool selects and sets speed and feed to machine according to nature of work and wheel used. Starts machine, brings rotating grinding wheel in contact with edge of tool and grinds proper angles, clearance, flutes etc. as required on tool or cutter set, frequently checking it with gauge or measuring instrument while grinding to ensure accuracy. Rotates work through proper angle by dividing head or otherwise to set next flute or teeth of tool or cutter for grinding and continues operation. Uses cutting fluid or coolant as found necessary and ensures that no part of work gets burnt or damaged while grinding. Stops machine and removes tool when grinding is completed. Changes grinding wheel and position of tool as and when required. May give final finish to cutting edge by hand using hones. May oil and clean machine. May specialize in grinding a particular type of tool and be designated accordingly. May check ground tool or cutter by shadow projector to ensure accurate finish. Grinder Operator makes metal articles to required specifications using lathe and cutting tools. Studies drawings and other specifications of parts to be made. Selects metal, holds it in chuck, jig or fixture on lathe as required, centres it by manipulating chuck jaws or otherwise using dial indicator or marking block and securely tightens it in position. Selects correct cutting tool, grinds it if necessary and holds it tight in tool post at correct height. Sets feed and speed and starts machine. Manipulates hand wheels or starts automatic controls to guide cutting tool into or along metal. Controls flow of coolant (cutting lubricant) on edge of tool. Arranges gears in machine to obtain required pitch for screw cutting. Calculates tapers and sets machine for taper turning, controls lathe during operation by means of hand wheels and levers and frequently checks progress of cutting with measuring instruments such as calipers and rule, micrometers, etc. Stops machine, removes completed part and checks it further with instruments to ensure accuracy.
This will involve dismantling- removing and replacing faulty equipment at component or unit level on a variety of different types of mechanical assemblies and sub-assemblies and diagnosing- locating faults- overhauling- fitting and adjusting mechanical systems and equipment.
Perform these above mentioned operations as per WPS(Welding Procedure specification). and can set-up and prepare for operations interpreting the right information from the WPS- obtaining the right consumables and raw materials- etc. and the candidate must know how to use the same in a safe manner following practices that ensure safety for self- others and the work environment and and assess weld quality through visual inspection.
Perform manual (semi-automatic) MIG/MAG (GMAW) welding for a range of standard welding job requirements and weld different materials (carbon steel- aluminum and stainless steel) in various positions. The welder can prepare various joints including corner- butt- fillet and tee. Set-up and prepare for operations interpreting the right information from the WPS
It involves performing boring operations in sheet- plate- rolled section or pipe using horizontal and/or vertical boring machines. Preparation for boring activities and select the appropriate horizontal boring tools and cutters- check them for defects- mount and secure them to the relevant tool holding devices and machine spindle to be used.
Perform broaching operations to produce a range of components which require machining of features like keyways, square holes, hexagonal and octagonal holes, holes with a single flat side, splines, serrations and special forms.
Operator CNC Milling makes metal articles to required specifications using CNC milling machine and cutting tools. Selects metal, holds it in vice or fixture. Selects correct cutting tool and holds it tight in tool magazine. Controls flow of coolant (cutting lubricant) on edge of tool. Set CNC milling machine, in order to perform milling operations on metal components as per specification. Operate CNC milling machine and produce components as per drawing by entering part programmes. Checks with measuring instruments such as vernier calipers, micrometers, etc. Communicate with required clarity. Understand and practice soft skills, time management, OSH&E, work with Computer. Sensitive to environment, self-learning.
A trainee attending the course ‘Operator CNC Turning’ makes metal articles to required specifications using CNC lathe and cutting tools. The trainee shall be able to operate CNC lathe machine and CNC turning machine to produce simple components.