How to press the copper tube into the groove of the cold plate?

How to press the copper tube into the groove of the cold plate?Usually, we use a roller to roll the copper tube. Due to local stress, the copper tube and cold plate come into close contact, which is beneficial for heat conduction.The more information:
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[@savagestyle124]

curious the dimensions of the tubing vs the slot.

[@KenFaTech]

After calculation, we will match the corresponding diameter copper tube with a suitable groove shape