Kunshan Meiyaxing Hardware Machinery Co., Ltd., a direct branch of Hong Kong Meiya International Trading Company in China, specializes in the wholesale of CNC tools. We are committed to providing customers with high-quality CNC tool products and professional services to meet their production and processing needs across various industries. We have established long-term strategic partnerships with renowned domestic manufacturers, boasting excellent sourcing channels, a comprehensive product line, and a diverse range of tool specifications. We offer a comprehensive range of CNC tools to meet all production and processing needs. We also continuously introduce new products to meet the diverse needs of our customers. Our service team boasts professional technical expertise and high-quality after-sales service, offering comprehensive technical support, installation and commissioning, and maintenance services to ensure a flawless user experience. We also customize tool solutions based on specific customer needs to ensure every customer receives the best possible service and experience. In the future, we will continue to uphold the "Quality First, Service Foremost" business philosophy, continuously improving our service and product quality to create greater value for our customers and help them achieve greater success.
1. Choose the Optimal Hole Bottom Size
This is the most important tip. Look, the tap tap The thread base hole must match the base hole size. Generally, a range of corresponding base hole sizes is provided in the catalog. Please note that this is a range. It's important to understand that there's no single tap and drill size. Different drill sizes result in different thread percentages.
The key point is: a 100% thread is only 5% stronger than a 75% thread, but requires three times the torque. Therefore, for slightly smaller threaded holes, excessive torque can easily break the tap, so buying used taps is not recommended.
Because used taps have already been subjected to uncertain torque, varying quality control makes it difficult to guarantee machining accuracy (someone has previously inquired about used taps). ), don't just look at the cost of a single tool; consider the overall cost.
The recommended drill size is almost always 75% of the thread. This provides a lot of power, but also enters the area of excessive torque.
2. Use extrusion taps whenever possible.
They don't produce chips; instead, they squeeze the material into shape. The most common cause of tap failure is that they become clogged with their own chips, which is impossible with extrusion taps. Extrusion taps also have a larger cross-section, making them inherently stronger than cutting taps.
Extrusion taps have two disadvantages. First, extrusion taps cannot be used for hard materials. Your material can reach 36 HRC hardness. This is more common than you might think, but some materials are certainly extruded. Secondly, some industries don't allow extruded taps because the process can create voids that trap contaminants in the threads. Extruded tapping also increases stress on the threads.
3. Consider other tools
For certain difficult-to-machine materials or high-value-added parts, always consider thread milling over tapping.
Thread mills have a longer lifespan than taps, despite their slower cutting speeds. You can thread closer to the bottom of blind holes, and single-thread mills can produce threads of various sizes. Furthermore, thread mills can be used with materials harder than taps.
For materials over 50 HRC, thread mills may be the only option. Finally, if you accidentally break a thread mill, it will be smaller than the hole being machined, so it won't break in the part like a tap, and even if it is broken, it can be easily repaired.
These are some of the issues that can cause tap breakage. The points I've mentioned may not fully cover the potential for tap breakage. If you have other good suggestions, please share them so we can grow and improve together.
If you have any questions about MANF tool products, please call us for consultation or negotiation
Contact us:Company name:Kunshan Meiyaxing Hardware Machinery Co., Ltd;Tel:8618962438699;Address: Room 3003, Building 3, Zhengtailong, No. 1288 Chengbei Middle Road, Kunshan City, Jiangsu Province, China;Email:myxcuttingtools@gmail.com;Website: https://www.myxcuttingtools.com
