CLOSED ON: 17 JAN 2020  |  REWARD: INR 3,00,000
Reward money is paid in exchange of legally acquiring the solution, implementing it to solve the problem and meeting the success criteria. Milestones for paying the reward money would depend upon the complexity of challenge and maturity of the proposed solution, which would be discussed with the solver as soon as the proposed solution is selected by us.
Under Evaluation

Short Description:

We are currently looking for alternate and novel methods for Deep hole drilling process and Assembly of the bar into the hole.

Challenge Details

Steel (0.06%C) billets are hot rolled into bars of 2 meters each. These rolled bars are then cut into specific lengths of ~2000mm and deep (blind) holes are drilled axially into these rolled bars (180mmx240mmx2000mm). Figure 1 shows the dimensions of the machined bar.

The tolerances of ±0.05mm needs to be maintained on the boring process. These deep holes (of Dia 30-50mm) are drilled to the length of 1700mm (overall length 2000mm) using a special purpose deep hole drilling machine.

It takes about 45 mins to complete the drilling process and additional 20 minutes to insert different (Circular bar) bar into the hole already drilled. The process is time-consuming, requires skilled labor.

Thus, we are currently looking for alternate and novel methods to get this manufactured and assembled with or without deep-hole drilling.


  1. The total cost of the assembled piece should be lesser than the current manufacturing cost.
  2. The solution should be economical and easier to adopt.
  3. It should not cause a huge capital acquisition.

Have any query or need more clarification about this challenge?