Precautions For Making The Right Choice Carbide Cutting Tools
The concept of drilling has changed since the advent of tools made from cemented carbide. Choosing the right carbide drill bit will greatly improve the drilling efficiency and lower the expense of single-hole processing. Cemented carbide tool bits are divided into four main types: solid carbide bits, indexable inserts of cemented carbide that can be used as index, welded cemented carbide bits, and replaceable cemented carbide roller bits. What should you look out when choosing the cemented precision punch tools.
Machining accuracy of cemented carbide tools
When choosing tools made of cemented carbide The dimensional precision requirements of the tool must be first considered. The greater the tolerance, the smaller the processing aperture. So, manufacturers typically classify tools according to the diameter nominal of the machined hole. Carbide indexable inserts are more suitable in rough machining. Although the processing cost is usually lower than other tools, the precision of the process is small and has a tolerance range of 0 to 0.3 mm.
Machining stability of cemented carbide tools
When choosing cemented mold maker, in addition to the drilling precision requirements the stability of the processing machine tool is also considered. The durability of the machine tool is a factor in the safety service life and drilling accuracy of cemented carbide products. It is important to inspect the state of the fixture, spindle and the accessories.
Additionally to that, the stability of the cemented carbide tool itself should also be considered. For example, the hardness of the whole tool could result in higher precision in machining. However, the structural stability of cemented carbide indexable inserts is not as good and deviations are likely to occur.
Since only the inner cutting edge is able to enter the cutting when processing begins the tool is in an unstable state that can lead to a deviance of the body. When using inserts that can be indexed from precision pin manufacturers tools, which have an extended length of 4D or more, the feed speed should be reduced in the initial phase of drilling. Once you have entered the cutting phase that is stable, the rate of feed is to be increased to a normal amount.
Chip removal and coolant chip removal using tools made of cemented carbide
One of the most common issues encountered during the drilling process for cemented carbide tools is poor removal of chips, and this is common regardless of the tool used. In the processing workshop, coolant is usually injected to aid in chip removal but this method is only effective when the depth of the hole is smaller than the diameter of the hole and cutting parameters are decreased. This is why it is necessary to hire professional carbide makers.
The cost per hole of cemented carbide tools
Cemented carbide tool makers are attempting to improve efficiency by studying machining techniques that integrate different operating procedures and creating tools that provide high-speed feed and processing at high speed.