G D & T And Co Ordinate Metrology

G D & T and Co-ordinate Metrology Presented by: Mr. Nilay Thakore ( Sr.Ex) Unit 5, GCEDAD Dept. Email: [email_address] Ext: 338 Mobile: 9586281878

Index ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

1. Introduction metrology ,[object Object],[object Object],[object Object],[object Object],[object Object],Sr. no. Physical quantity Name of the unit Symbol 1 Length Meter m 2 Time Second S 3 Mass Kilogram Kg 4 Temperature Kelvin K 5 Elec. Current Ampere A 6 Luminous intensity Candela Cd 7 Quantity of Substance Mole mol

Measuring Instruments Classification:

3. Uncertainty Sources ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

4. SWIPE Concept ,[object Object]

5.Why use G D & T ? ,[object Object],[object Object],[object Object]

MMC & LMC ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Flatness A Flatness tolerance zone is the distance between two parallel planes, the part surface must lie between them.

Straightness A straightness tolerance is used to control the straightness of a surface or axis. It specifies how much the surface or axis is allowed to vary from the perfect straight line implied by the point.

Circularity ,[object Object],[object Object],[object Object]

Cylindericity ,[object Object],[object Object],[object Object]

Perpendicularity ,[object Object]

Parallelism ,[object Object],[object Object],[object Object]

Profile Tolerances ,[object Object],[object Object],[object Object],[object Object]

Circular Run out A Circular run out tolerance controls the relationship of individual circular elements of the part feature to a datum axis.

Total Run out A total run out tolerance controls the relationship of the entire feature surface to a datum axis.

Position Position refers to the theoretically exact location of the centre, axis or centre plane of a feature in relation to another feature or datum. A position tolerance specifies how much the centre, axis, or centre plane is allowed to vary from its theoretically exact location.

Concentricity Concentricity describes the relationship between the axes of two or more cylindrical features. Perfect concentricity exists when the axes coincide.

Symmetry A part feature that can be divided into two equal halves is described as symmetrical.

8. Advance Metrological Instruments

Facility: Roundness Tester (RA-116) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Facility: Surface Roughness Tester (SJ201) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Applications

Facility: Laser Scan Micrometer (LSM 503) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Facility: Micro hardness Tester (HM112) ,[object Object],[object Object],[object Object],[object Object],[object Object]

Facility: Micro hardness Tester (HM112) ,[object Object]

Facility: Optical Profile Projector (PJA-3005) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Facility: Measuring Microscope (MF-1010) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

9. CMM Co-ordinate measuring machines.

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Trigger and High Accuracy Scanning sensors LSP-X3 Max. Stylus extension 360 mm LSP-X5 Max. Stylus extension 500 mm LSP S2/S4 Max. Stylus extension from 600 to 800 mm LSP-X1 Max. Stylus extension 220 mm Tesastar Manual Swivelling Tesastar I Manual Indexable Tesastar-m Motorized Indexable Leica T-Probe Walk around measuring probe Tesastar-mp Magnetic tip modules Stationary Portable Micro

Geometries and Applications ,[object Object],[object Object],[object Object],[object Object],Simple Geometry Complex Geometry Sculptured Geometry

Software for all requirements PC-DMIS, General purpose & for sculptured Geometries Quindos Prismatic & Special geometries Chorus CAD PC-DMIS QUINDOS CogniTens CogniTens software package for white light measurement, sheet metal inspection, assembly analysis and reverse engineering ChorusCAD, /Surfer Sheet metal Stationary Portable Micro

[object Object],[object Object]

G D & T And Co Ordinate Metrology

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