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CURVATURE & GAUGING BALLS |
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Gauging Balls
has universal characteristics such as self-centering , point contacts
(on planes, large internal curves, other balls etc.) ,Consistent
profile from every angle and uniform diameter .
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Calibrated "Gauging"
balls can be used like Slip Gauges for
inspection and high precision applications in Metrology Labs, Tools
Rooms, Gauge Rooms etc. These Gauging balls can be used with
intermediate measuring devices such as Clappers, Micrometers, Height
Gauges, Depth Micrometers etc. for many precision measuring
applications such as measurement of internal / external tapers,
angles, internal / external dovetails, width & angle of V-grooves,
radius of curved surfaces and many more. These can also be used for
accurate calibration and checking of ID and OD of gauges and
instruments.
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Gauging Balls can be provided in sets of 1.0 To 25 mm & 1.5 To 12.5 mm (in steps of 1 mm) or as loose balls in Chrome Steel or Tungsten Carbide and diameter accuracy up to + 0.25 micron and sphericity up to 0.13 micron. |
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B. Loose Balls Loose
Balls are also available from 0.5 mm to 100 mm (and equivalent inch)
diameter depending up on the Grade. Price can be quoted on request.
Please specify diameter, grade, material and quantity required.
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TENSILE STRENGTH
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228 kgf/mm2
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MODULUS OF ELASTICITY
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20750 kgf/mm2
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SPECIFIC WEIGHT
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7.83 kgf/cm3
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HARDNESS
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BETWEEN 60-67 HRC
( measured on parrel flats) |
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COMPONENT
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C
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Si
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Mn
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P
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S
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Cr
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CONTENT (%)
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0.95-1.10
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0.15-0.35
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0.5 MAX
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0.025 MAX
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0.025 MAX
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1.30-1.60
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(also known as High Carbon Chrome Steel)
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DSP-BALLS:
PRODUCTION LINES OF PRECISION BALLS
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Production lines for Precision Balls are stream-lined with optimum combinations of various processes. The process given below illustrate how the high Quality Gauge balls are achieved |
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Raw
Material
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Is thoroughly inspected for Physical & Chemicals properties . |
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Heading
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Wire coils are cold forged into spherical blanks, for compact structure, in semi-automatic machines known as single stroke Headers. |
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Flashing
/ Filing
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Die-marks on poles and equator of headed blanks are then removed by grinding them between hardened plates of special composition, known as Flashing / Filing. |
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Heat
Treatment
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Balls are heated in controlled environment to critical temperatures & quenched to attain due hardness. Balls are then tempered to close limits. |
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Grinding
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Balls are ground to close tolerances in special machines with different grades of abrasives for final lapping processes. |
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Lapping
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Balls are lapped for final parameters of size, sphericity , lot variation and to surface quality in a series of specially designed machines known as Lappers. |
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Cleaning
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Balls are then prepared for macro inspection by thorough cleaning in a especially designed cleaning machine. |
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Macro
Inspection
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Whole production of DSP-BALLS goes through 100 % inspection by well trained inspectors, under suitable magnification and light, for all surface defects. |
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Super
finishing
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Balls passed through macro inspection goes under super finishing and all Specified parameters are maintained in required tolerances as per grade to be prepared . |
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Guarantee
Test
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During production balls are inspected at every stage for fixed stage specifications, and the material is unloaded from the machines only on qualifying limits. Finally, during super finishing, parameters of geometry, lot variation and surface roughness etc. are re-ensured and detailed inspection report is prepared and supplied to the customer on demand. |
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Packing
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Rust Prevention Oil is applied on the balls . They are then double packed in polythene bags, before being packed in Cardboard boxes and wooden cases. Labels carrying details of sizes, quality are properly pasted.. |
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Cargo
to Export
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Balls so packed are ready for Export to customers. |
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