Technology page is shared the experience of technical talent in field of drill bit grinder, help you to resolve the technical difficulties, and makes you into a specialist of drill bit re-grinder.

February 12, 2019

Effect of Grinding Quality of Twist Drill on Machining

The grinding quality of twist drill directly affects its drilling quality. So the grinding of twist drill is very important. There are two kinds of grinding conditions for twist drills: 1) correct grinding and 2) incorrect grinding. The impact of these two conditions on workpiece processing is described below. 1. Correct grinding Drilling condition: When […]

February 1, 2019

How to choose the right geometric Angle of graphite tool?

Choosing the right geometric angle of the graphite tool can help to reduce the vibration of the tool. In turn, the graphite workpiece is not easy to collapse. (1) Land Angle When the negative land angle is used to process graphite, the blade strength is good, the impact resistance and the friction resistance are good. […]

January 24, 2019

Application of coating technology

In the case of constant cutting parameters, in order to improve production efficiency and reduce production costs, the tool coating technology to reduce tool wear, and in order to improve tool durability has become a trend. Tool coating refers to coating a thin layer of refractory metals or non-metallic compounds with good wear resistance on […]

January 17, 2019

Clamping method of workpiece in drilling

In order to ensure the quality and safety of drilling, different clamping methods should be adopted according to different shapes of workpieces and cutting forces. (1) The workpiece with a flat shape can be clamped with a flat-jaw clamp, as shown in Figure (a). (2) For cylindrical workpieces, V-shaped iron can be used for clamping, […]

January 10, 2019

How to select the material of drill bit?

According to the machining characteristics of the material, the drill bit is required to have the following characteristics: the hardness of the drill bit must be greater than the hardness of the workpiece to be processed. Because the bit bears a lot of torsion and axial force when machining the workpiece, it must have enough […]

December 17, 2018

Nowadays, more than 70% of cutting tools used in machining are coated

The improvement of tool performance is directly related to tool coating and geometric parameters. From the cutting tools used in today’s machining, more than 70% of the cutting tools are coated. The application of tool coating not only plays a protective role on the tool, but also effectively promotes the improvement of tool matrix material […]

December 11, 2018

Several operations related to drilling & Technical requirements for drilling

Several operations related to drilling Hole is an important surface on the box, bracket, sleeve, ring and disk parts, and is often encountered in machining. Drilling refers to the method of machining holes on solid materials with drill bits. There are several operations related to drilling. Some of them are: Reaming, Tapping, Counterboring, Countersinking, Center drilling, […]

December 4, 2018

When do you stop using the tool and then grind it?

One auto parts manufacturer sends taps for repairs every 2,000 to 3,000 holes it processes. In this way, each tap can be reused three times. But if he uses the taps until they are completely damaged and then sends them back for repair, they may only be able to process 1,000 more. We recommend that […]

November 28, 2018

Some problems that must not be neglected in tool grinding

Tool materials Common tool materials in tool grinding are: high speed steel, powder metallurgy high speed steel, hard alloy and PCD, CBN, cermet and other superhard materials. High speed steel tool sharp, good toughness; Carbide cutting tools have high hardness but poor toughness. The density of carbide tool is obviously higher than that of HSS […]

November 9, 2018

Coating and grinding technology of tools

In the regrinding process of the drill bit or milling cutter, cutting lip should be ground to remove the original coating, so the grinding wheel used must be of sufficient hardness. Regrinding pretreatment of cutting lip is crucial, not only to ensure that the geometric shape of the original cutting lip after regrinding can be […]

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