Speedfam high performance Monochromatic Check-lite measures the flatness of finished components in the range of 1 light band or 0.3 Micron with the help of speedfam optical flat. No skilled technician is required to measure the flatness accurately, using the speedfam monochromatic checklite. Its exceptional design prevents the penetration of extraneous multiwave Length Light from outside sources. It can be placed near the production operation.
Applications : To check the flatness on the polished components
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Speedfam optical flats provide the fast, sure and accurate method of obtaining flatness measurement under Monochromatic Checklite. It is always necessary to have reflective, clean and dry surface of finished component before measuring its flatness. Flatness measurements are accomplished by reading interference (light) bands which appear on the surface of the work piece when placed under a Speedfam optical flat. Fringes appear when the flat is placed gently on work piece surface under Monochromatic Checklite. The optical flats are available in various diameters.
Optical flats are available in Borosilicate glass material with flatness accuracies as ?4, ?6, ?10. These are available either Single side or Double side surfaces. Sizes available are 1", 2", 3", 4", 5", 6", as standards and other sizes on request.
Light bands or lines & their interpretation is illustrated as below.
LIGHT BAND MEASUREMENT OF FLAT SURFACES -
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Straight,parallel lines or bands indicate true flatness |  |
The flatness is read from the no. of bands intersected by a tangent line to any curve, counted from the point of greatest curvature to one side of piece. Above work piece is 1band out-of-flat. |
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Illustration shows low area or grove in work piece of 1/2 band deep and a drop-off area at lower right hand edge of 1band. |  |
Shown here is edge rounding or "Dubbing" of 1/2 band. |
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If broadening of light bands occurs when pressed at the center, the piece is concave |  |
Either concave or convex pieces may show as a "Bulls-Eye" design. If Bulls-Eye" moves toward point of pressure when pressed on edge the piece is convex. |
Applications : To measure flatness on polished components w.r.t. checklite.
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These are used to measure flatness of the lap plate. The straight edge is made up of graded Cast Iron in 'I' section with accuracy of grade 'O'.
Filler Gauges are available from thickness of 10, 20 & 30 microns.
Applications : To determine lap plate flatness.
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Speedfam Span Guage is with 3 legs presettable on a master Surface Plate. A Dial in the centre measures the flatness at various positions.
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√ Lapping Machines & Polishing Machines
√ Consumable
√ Measuring Instruments
√ Systems
√ SPMS
√ Mr. Praful Gowande
√ W-401, T.T.C. INDL. AREA, MIDC RABALE,
Navi Mumbai - 400701
√ +91-9820048456
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