Application Of Cold Precision Forging Technology In Making Roof Bits
When it comes to mining, especially underground mining, one of the key cutters that also proves to be a critical component in mining engineering is the roof bit(click here to know more about it) or roof drill. Designed to handle rough and demanding mining services, the roof bit provides impressive productivity. They also offer unparalleled versatility.
The economic performance of roof bits directly affects the capacity utilization rate, power consumption, working stability and service life of other related components of mining machinery.
Roof bits are subjected to high cyclic compressive, shear and shock loads when cutting rock. Although the hardness of the ore is not very high, it often encounters hard mineral materials such as gangue. Therefore, the construction of these cutting tools must take into account properties that allow them to withstand surfaces harder than mine.
The impact of hard materials can also lead to an increase in the temperature of the roof bits’ body. Therefore, the roof bits working under such complex conditions require the body to have both wear resistance and good impact resistance. Otherwise, these cutting tools may not deliver in the expected conditions.
Roof bits bodies are from 4140 or 4130 materials, which are high-grade steel alloys. The processes used to manufacture the body are cold forging and warm forging techniques. Compared with warm forging, cold forging technology has higher cost performance. The tool body after cold forging has the advantages of fine grain size and good heat treatment performance. It also offers a small machining allowance, and mass production advantages. Fine-grain size is a key factor in increasing the hardness and strength of the forged roof bits body. This is why cold forging or blanks can withstand high impact and thermal damage.
The small machining allowance feature enables manufacturers to reduce finishing costs. The cold forging process produces near-net-shape forgings. Therefore, the finishing allowance is very small, which is beneficial to reduce the production cost. Buyers can get these roof bits at a lower price. Another advantage of cold forging is the high volume of mass production. These forging processes enable mass production of roof bits blanks. The production process uses a mold, and once the mold is made, it can produce tens of thousands of homogeneous cutter bodies.
Cxin Forging focuses on the production and processing technology of hot forging, warm extrusion and cold forging. The company has been engaged in the warm and cold precision forging of aluminum alloy, carbon steel, stainless steel and other metal materials for more than 10 years. We also provide customers with machining services such as CNC machining centers, brazing and surfacing.
CXIN Forging provides roof bits from cold and warm forging blanks for many brand manufacturers in China, Europe and the United States. Quality and cost performance are a guarantee. If you also have this need, please contact us immediately!