Thursday, April 12, 2012

021 How to model a Drill bit using Catia

In this tutorial, a Drill bit is modeled in Catia using two modules, the generative surface design and the part design modules. The main idea of modeling the cutting blade of the bit was inspired by Abhijeet www.abhijeetks.yolasite.com. This drill bit has two main parts, the spiral cutting blade and the solid part.


This Drill bit is modeled in catia using the following steps:

  1. The cross section of the Drill bit is sketched in either the generative surface design or in the part design modules.
  2. Switching to the generative surface design, four helices are created emerging from the four points of the cross section. Length of the helix should be the desired length of the cutting blade.
  3. A support plane is created at a distance from the first sketch which is also equal to the length of the cutting blade.
  4. The second-end profile of the cutting blade is sketched on the support plane using projection tool.
  5. Switching to the Part design module, the multi-section solid tool is used to generate the Drill bit blade using the two profiles and the four helices.
  6. One surface is created to split the bit tip.
  7. The rest of the bit body is created.
  8. Two sweep surfaces are created down the bit to make the final runway for chips.
All these steps are shown in full details in the following video in order to create a Drill bit..Enjoy!: