Quality Control Inspector
Quality control inspectors examine products and materials for defects or deviations from specifications.
Duties
Quality control inspectors typically do the following:
- Read blueprints and specifications
- Monitor operations to ensure that they meet production standards
- Recommend adjustments to the assembly or production process
- Inspect, test, or measure materials
- Measure products with calipers, gauges, or micrometers
- Operate electronic inspection equipment and software
- Accept or reject finished items
- Remove all products and materials that fail to meet specifications
- Report inspection and test data such as weights, temperatures, grades, moisture content, and quantities inspected
Quality control inspectors, also called testers, sorters, samplers, and weighers, monitor nearly all manufactured products to ensure that they meet specified standards. Job duties vary across the manufacturing industries in which most of these inspectors work, which include foods, glassware, motor vehicles, electronic components, and structural steel.
Quality control workers use a variety of tools. Although some still use hand-held measuring devices, such as calipers and alignment gauges, workers more commonly operate electronic inspection equipment, such as coordinate-measuring machines (CMMs) and three-dimensional (3D) scanners. Inspectors testing electrical devices may use voltmeters, ammeters, and ohmmeters to test potential difference, current flow, and resistance, respectively.
Quality control workers record the results of their inspections through test reports. When they find defects, inspectors notify supervisors and help to analyze and correct production problems.
Some manufacturers have automated inspection processes, with advanced vision inspection systems installed at one or several production points. Inspectors monitoring these automated systems check equipment, review output, and conduct random product checks.
The following are examples of types of quality control inspectors:
Materials inspectors check production materials by sight, sound, or feel to locate imperfections such as cuts, scratches, missing pieces, or crooked seams. Materials inspectors also may use devices such as infrared microscopes to analyze plastic, rubber, and other substances and to look for deterioration or defects.
Mechanical inspectors generally verify that parts fit, move correctly, and are properly lubricated. They may check the pressure of gases and the level of liquids, test the flow of electricity, and conduct test runs to ensure that machines run properly.
