Page 152 - CITS - Fitter - Trade Theory

FITTER - CITS

2 Dimensional Inspection: -

CMMs are used to measure dimensions, angles, distances, and other geometric features of manufactured parts.
This includes verifying the accuracy of machined parts, sheet metal components, injection-molded parts, and more.
3 Reverse Engineering: -

CMMs play a crucial role in reverse engineering processes where physical objects are digitized to create CAD
models. By capturing the surface geometry of an existing part, CMMs enable the reproduction or modification of
parts without the original design data.
4 Tool and Mold Making: -
CMMs are used in the production of molds, dies, and tooling for various manufacturing processes. They help ensure
the accuracy and precision of these critical components, which directly impacts the quality of the final products.
5 Prototype Development: -
CMMs are utilized in the development and validation of prototypes by accurately measuring prototype parts and
comparing them to the design specifications. This helps identify and rectify any discrepancies early in the product
development cycle.
6 Statistical Process Control (SPC): -

CMM data can be integrated into statistical process control systems to monitor and analyze manufacturing
processes in real-time. By detecting deviations from the desired tolerances, SPC helps identify process variations
and improve overall production efficiency.

7 Assembly Verification: -
CMMs are used to verify the dimensional integrity of assembled components, ensuring proper fit and alignment.
This is particularly important in industries where precise assembly is critical, such as automotive and aerospace.
8 Surface Analysis: -

CMMs equipped with scanning probes or laser scanners can perform surface analysis to assess surface roughness,
contour, form, and deviations from nominal shapes. This information is valuable for optimizing surface finish and
ensuring functional performance.
9 Batch Inspection: -
CMMs can be programmed to perform batch inspection of multiple parts, automating the measurement process
and improving throughput in manufacturing operations.
10 Tool Calibration: -
CMMs are used for the calibration of various measurement instruments and gauges, ensuring their accuracy and
reliability in quality control processes.
Coordinate Measuring Machines (CMMs) find application across various industries due to their versatility
and precision in measuring the physical geometrical characteristics of objects. Here are some specific
applications of CMMs:
1 Automotive Industry: -
CMMs are extensively used in automotive manufacturing for quality control and inspection of components such
as engine blocks, cylinder heads, gears, pistons, and body panels. They ensure that parts meet strict dimensional
tolerances and specifications.
2 Aerospace Industry: -

CMMs play a critical role in the aerospace sector for inspecting complex components like turbine blades, airfoils,
structural components, and composite materials. They help verify the accuracy of parts used in aircraft and
spacecraft assemblies.
3 Medical Device Manufacturing: -
CMMs are used in the production of medical devices such as implants, prosthetics, surgical instruments, and
precision components. They ensure the dimensional accuracy and quality of these critical healthcare products.

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CITS : CG & M - Fitter - Lesson 25