Machinist Grinder

Performs a wide range of duties to set-up, adjust and operate precision grinding machines (ID / OD / Surface Grinders). Grinds internal and external surfaces to close and exacting tolerances which involve several interrelated dimensions. Grind parts to required finish on work having steps or surfaces, high precision diameters, recesses and tapers. This requires skill, judgment and knowledge related to precision grinding techniques and finishes.

Scope and Responsibilities:

• Plans a sequence of standard and recognized operations. Makes set-ups and adjustments on special and difficult work. Plans grinding sequence, selects speeds, feeds, wheels and holding devices. Dress wheel as required.
• Positions, aligns and secures workpiece in machine, set grinding head to conform with specifications, making required adjustments and grinding parts of various styles and sizes. For example: spindles, spindle sleeves, rams and housings and bushings.
• Starts and observes machine operation to detect malfunctions or out-of-tolerance machining and adjusts machine controls or control media as required.
• Studies and works from part drawings, specifications, charts, etc. (on a variety of steels, alloys and castings) to determine dimensions and tolerances of finished workpiece. Works to very close tolerances.
• Uses a range of measuring instruments such as scales, square, calipers, micrometers, verniers, indicators, air gauges, special fixed and adjustable measuring devices to make set-ups, adjustments and to check work.
• Detects unusual conditions, defective materials or operating difficulties and report to proper supervision. Maintains machine and work area in a clean and orderly manner.
• Provides training and technical support to other employees within the grinding department, as required.
• Confers with engineers, production personnel, programmers or others to resolve machining or assembly problems.
• May also operate and provide basic maintenance of the straightening presses and manual lathes.

Qualifications:

• Over three years of related experience or an Associate's Degree in a Machinist program.

Skills Required:

• Knowledge of grinding methods, wheels, cutting qualities of metals.
• Knowledge of Geometric dimensioning and tolerancing.
• Assigned person must maintain quality standards and have the ability to efficiently perform complex work.
• Ability to use shop math together with the use of complicated drawings, specifications, charts, tables, etc.
• Knowledge of various types of precision measuring instruments such as inside and outside micrometers, vernier caliper, Snap gauge, micrometer depth gauge and dial indicator.
• Able to use independent judgment to plan, perform and make decisions as to sequence of set-ups, operations and processes within a sequence of standard and recognized procedures.
• Able to operate machines on various styles and sizes of parts requiring grinding of various operations.
• Able to work on a variety of metals selecting proper feed, speed, etc. and work to close tolerances.
• Able to work with Metric or English drawings.