Direct supply from press riveting equipment manufacturers, manual tapping often breaks the tap.

Press Riveting Equipment Manufacturer Direct Supply Manual Tapping Frequent Tap Breakage
Frequent tap breakage during manual tapping is often related to operating techniques, material characteristics, and lubrication conditions. Below are common causes and solutions:

Press Riveting Equipment Manufacturer Direct Supply Manual Tapping Frequent Tap Breakage
I. Operating Techniques
Control Speed and Force: Maintain a steady rotation speed during manual tapping to avoid sudden force application that may cause tap breakage.
Proper Use of Lubricant: Apply lubricating oil (such as kerosene or specialized tapping oil) at the breakage point to reduce friction and remove iron chips.
Reverse Light Tapping Method: Use a sharp punch to lightly tap the reverse side of the broken tap, gradually clearing debris and attempting to rotate it out in reverse.

Press Riveting Equipment Manufacturer Direct Supply Manual Tapping Frequent Tap Breakage
II. Material Characteristics
Processing Soft Metals Like Aluminum Alloy: Materials such as die-cast aluminum are prone to chip adhesion due to their soft texture. Use specialized aluminum alloy tapping oil to improve lubrication and chip removal efficiency, preventing tap breakage caused by high temperatures.

Press Riveting Equipment Manufacturer Direct Supply Manual Tapping Frequent Tap Breakage
III. Equipment and Tools
Select Appropriate Taps: Choose tap materials (such as HSS high-speed steel or carbide) based on material hardness to avoid breakage due to insufficient tap strength.
Auxiliary Tools: Weld a handle or nut to the broken tap, or use a broken tap extractor to dissolve the broken tap via electrical discharge corrosion before extracting it in reverse.

Press Riveting Equipment Manufacturer Direct Supply Manual Tapping Frequent Tap Breakage
If the above methods are ineffective, it is recommended to switch to electric tapping equipment (such as an electric universal tapping machine), whose servo motor drive system can effectively reduce the risk of tap breakage.