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Industries & Professions /
Quality Control Engineers and Technicians
Quality control engineers develop, implement, and direct processes and practices that result in a desired level of quality for manufactured parts. They identify standards to measure the quality of a part or product, analyze factors that affect quality, and determine the best practices to ensure quality.
Quality control engineers set up procedures to monitor and control quality, devise methods to improve quality, and analyze quality control methods for effectiveness, productivity, and cost factors. They are involved in all aspects of quality during a product's life cycle. Not only do they focus on ensuring quality during production operations, they are also involved in product design and evaluation. Quality control engineers may be specialists who work with engineers and industrial designers during the design phase of a product, or they may work with sales and marketing professionals to evaluate reports from consumers on how well a product is performing. Quality control engineers are responsible for ensuring that all incoming materials used in a finished product meet required standards and that all instruments and automated equipment used to test and monitor parts during production perform properly. They supervise and direct workers involved in assuring quality, including quality control technicians, inspectors, and related production personnel.
Quality control technicians work with quality control engineers in designing, implementing, and maintaining quality systems. They test and inspect materials and products during all phases of production in order to ensure that they meet specified levels of quality. They may test random samples of products or monitor production workers and automated equipment that inspect products during manufacturing. Using engineering blueprints, drawings, and specifications, they measure and inspect parts for dimensions, performance, and mechanical, electrical, and chemical properties. They establish tolerances, or acceptable deviations from engineering specifications, and they direct manufacturing personnel in identifying rejects and items that need to be reworked. They monitor production processes to ensure that machinery and equipment are working properly and are set to established specifications.
Quality control technicians also record and evaluate test data. Using statistical quality control procedures, technicians prepare charts and write summaries about how well a product conforms to existing standards. Most importantly, they offer suggestions to quality control engineers on how to modify existing quality standards and manufacturing procedures. This helps to achieve the optimum product quality from existing or proposed new equipment.
Quality control technicians may specialize in any of the following areas: product design, incoming materials, process control, product evaluation, inventory control, product reliability, and research and development. Nearly all industries employ quality control technicians.
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