Deep drilling threads is a kind of inclined hole processing technique, which is used to create threads on a material surface. This method is mostly used for machining parts made of special materials. It has been widely used in aerospace and automotive industries for creating threads in high-precision components with restricted geometries.
The first step in deep drilling threading is to create a hole in the part surface. The hole is drilled to the desired depth and diameter using a cutting tool. The hole is then reamed to get rid of the existing burrs and to make the surface smooth. Now that the hole is ready, the proper tooling is chosen for deep drilling threading. The tooling can be selected on the basis of the required thread dimensions, material type, and the end applications.
The next step is to set up the drill jig and locate the part accurately on the jig. This is an important step as it will ensure that the threads that are created are aligned perfectly with the other components on the jig. Once the jig is set up and the part is in place, the threading tool is inserted into the part. The threading tool is then clamped firmly in place and the cutting fluid is applied to reduce the temperature and lubricate the cutting.
Once the thread cutting has begun, the tool rotates in place as it cuts the threads on the part. It is important to maintain a constant feed rate as the threading tool penetrates further and further into the hole. The cutting parameters should also be adjusted as per the material type and the desired thread dimensions. After the threading is complete, the depth and diameter of the cut threads are checked and measured to ensure they meet the requirements. If necessary, further adjustments can be made to the cutting parameters.
Once the threads have been cut, the threads must be cleared to prevent debris from entering into the work piece. The debris can cause interference in the performance of the part, resulting in premature wear and tear. The thread cutting tools should then be cleaned to prevent them from rusting and should be kept in a safe and dry place.
By following these steps correctly, one can obtain high-precision threads on the part surface with minimal wastage of material. Deep drilling threading is a fast and efficient process that offers manufacturers the flexibility to create high-precision components with restricted geometries. This type of threading is suitable for a wide range of applications and can be used to produce small, complex parts with fast turnaround times.
