Self-locking is an ideal screw connection, it is a special kind of pre-loaded lock (female) within the thread form, it is very resistant to the transverse vibration – this is a major cause of lead to loose thread. If there is a standard external thread within the EMG self-locking internal thread, the internal thread creates a self-locking spiral connection that can be reused. The special configuration of a self-locking thread allows a uniform distribution across the length of the thread, eliminating the slippage. Automatic locking devices apply to threaded parts of the load cycle that are subjected to shock and vibration, extreme temperatures, long periods of intense work, and millions of load cycles without reusing. Male fasteners with self-locking threaded holes and nuts have eliminated the need for other locking devices compared with standard threads, greatly reducing the possibility of fatigue failure.
characteristic
Thread locking features are integrated into internal threads
A modified section with a inclined plane in the direction of stress
The slope surface provides the self-locking effect
An assembly error is impossible (forget the locking device)
Using standard external threads (screws) and tolerating class “medium”
Even the stress distribution of the entire length of the thread
Economically efficient locking systems that do not require additional components
Maintain maximum strength even under dynamic stress
Repeat to relax and retighten without losing function
Internal thread can be produced by EMG faucet, cold tap or thread mill.
Larger thread hole diameter – adds tool life to thread tools
A self-locking thread configuration file is an EM standard. Thread g aging is done with EM thread g age
The faucet of EM speed is designed for high speed thread design of CNC control machinery. The unique geometry of these tools, coupled with a high quality powder metal HGFH substrate and PVD application hard surface coating, enables you to go online at the maximum surface image value beyond the traditional recommended standard. In the use of the soft synchronous clicker, in the rigid tapping operation, quick click operation can greatly reduce the number of cycles.
Design options
An EFD-G is a typical tool for blind threaded threads for long – cut materials. A fast spiral flow provides a good chip out of a blind hole.
Especially for short cut materials. The flute can only hold a portion of the chip. There is almost no chip transfer in the axial direction. No deep holes or perforated holes are recommended.
RKD B- a typical tool for perforating threads in long gouge materials. The spiral point pushes the tight pieces of pressure, preventing the water from clogging. Coolant and lubricant can flow freely.
Especially on automatic lathe and multi-spindle machine tool recommendation. The slow spiral groove is particularly useful in threaded holes because the diameter of the threaded hole increases (anti-hole or reaming).
Coolant provides options:
Axial cooling liquid hole design for blind hole application