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The Central Manufacturing Technology Institute (CMTI) being a National Research and Development organization stands as a pioneering force, dedicated to shaping the manufacturing landscape through its unwavering focus on science, technology, and innovation. By driving the development of new technologies, catering to customer needs, providing valuable services, and fostering an environment of advanced technology intervention, CMTI solidifies its position as a catalyst for growth, progress, and excellence in the manufacturing industry.

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  • Sphere Lapping Attachment for CNC Lathe

Sphere Lapping Attachment for CNC Lathe

Salient Features:

Attachment for CNC lathe, Easy to mount on VDI 30 or VDI 40 turret, Turned sphere heads are  lapped, Sphere to be lapped is held in machine spindle.


Work piece accuracies:

Level of Development:

• Quality wise attachment can provide the output of form ( sphericity) less than 0.008mm and surface roughness value (Ra) less than 0.03 micro meter

Status of Commercialization:

• Ready for Technology Transfer

Major Raw materials Utilised:

  • Generally cast Iron and for finishing process standard felt made of woolen material utilized. Process uses lapping paste with different grades.

Major Plant Equipment and Machines required:

• CNC lathe and Electric power to run its motor drive.

Techno economics:

  • It is unique attachement for CNC lathe. There are no attachment manufacturers for CNC machines to produce finishing process on spherical parts. Attachment is economical. Form and surface finish achieved is in micrometer level.

Technology Package

  • Design and drawings, technical documents, consumable details and bill of materials