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Tungsten carbide plane cutter planing Introduction

Details: Category: Tungsten Information; Published on Thursday, 06 November 2014 18:31; Written by xjq; Hits: 502

Tungsten carbide plane cutter, with one cutting part, is a kind of cutter that is used in planing. Planing is the most common machining method in unit production. Planer types most commonly seen include shaper, double housing planer and slotting machine. Planing’s main movement is variable speed reciprocating linear motion. Due to the inertia during speed changing, the cutting speed is limited. Also, because planing does not conduct cutting in its return trip, it has relatively low production efficiency. However, planing only requires for simple-structured machine tools and cutting tools which are easy to be installed and adjusted, so it has high universality.

Due to its characteristics, tungsten carbide plane cutting planing mainly used in plane processing and also widely applied in straight groove processing, such as right-angled groove, dovetail groove T-shaped groove, etc.

The technical characteristics of tungsten carbide plane cutter planning:

I. High universality

II. Low efficiency

III. Low machining precision

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Can Cutting Fluid Be Used in Tungsten Carbide Cutting Tool

Details: Category: Tungsten Information; Published on Thursday, 06 November 2014 18:29; Written by xjq; Hits: 564

Tungsten carbide cutting tool normally do not adopt cutting tool for cooling during machining. It is because that tungsten carbide is of high hardness (aboutHRC90), and can allow high cutting temperature (up to 1000℃), so the absence of cool fluid does not affect its cutting. In addition, due to its sensibility towards to shock heating, adopting cutting fluid may caused its tipping.

So, is that true that tungsten carbide cutting tools absolutely do not allow for the adopting of cutting fluid during cutting? The answer is yes, but it is conditional. Operator should pay attention to some points as follows if they want to apply cutting fluid in the cutting:

I. Using oil-based metal cutting fluid with antiwear additive

Oil-based metal cutting fluid has poor heat conduction property, and thus will not cause shock chilling on the tool. Also, oil-based metal cutting fluid can easily stick to the tool and thus help to keep a stationary temperature for the tool.

II. Cooling tungsten carbide cutting tools evenly

The cooling towards cutting tools by cutting fluid should be done evenly in case of tools being hot and cold and finally results in tool tipping.

III. Cooling tungsten carbide cutting tools in the whole process

Before the cutting starts, the operator had better open the cutting fluid in advance and the cooling fluid should be adopted in the whole cutting process without stops.

The cutting fluid, if used properly with the above mentioned points, can not only protect tungsten carbide cutting tools, but also improve the cutting precision, because the oil-based metal cutting fluid, when used in the cutting to cool the tools, can also lubricate the tools and the machining areas of workpieces and thus improve the surface machining quality.

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Tungsten Carbide Multithread Hobbing Cutter Introduction

Details: Category: Tungsten Information; Published on Wednesday, 05 November 2014 18:32; Written by xjq; Hits: 536

Tungsten carbide multithread hobbing cutter is a kind of cutting tool used in gear machining. The kind of hobbing cutter normally adopted is single-thread hobbing cutter with only one helix, while multithread hobbing cutter is of several helixes. Generally, when the number of thread in a hobbing cutter increases, its efficiency will also be higher, but the gear being processed will lower its quality. Other cutting parameters remaining the same, when the single-thread hobbing cutter makes one rotation, the gear processed will move one of its teeth, and when the multithread hobbing cutter makes one rotation, the gear processed will move several of its teeth. It seems that the efficiency of multithread hobbing cutters will be much higher than that of the single-thread ones, but actually it is just a theoretical assumption. The fact is the tungsten carbide hobbing cutter should change its corresponding parameters taking into consideration various kinds of parameters like the rigidity of machine tools, so its efficiency is actually lower than the theoretical one. In addition, its machining precision is lower than that of the single-thread hobbing cutter due to the influence of its indexing accuracy. To put it simply, multithread hobbing cutters have lower precision but higher efficiency than that of single-thread hobbing cutters.

However, due to the high processing efficiency, if the machining precision of the tungsten carbide multithread hobbing cutter can be improved, it will surely gain wider and wider applications in gear machining.

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Tungsten Nail Sinker Advantages

Details: Category: Tungsten Information; Published on Thursday, 06 November 2014 08:46; Written by Sherry; Hits: 498

Made of tungsten, tungsten nail sinker is designed specifically for the professional soft plastic bait angler to give anglers the extra edge against the competition.

And depending on where the tungsten nail sinker is inserted into the body of the soft plastic lure, the tournament angler is able to effectively tune the rolling action, diving pitch and buoyancy of the soft bait plastic lure to mimic an injured bait fish.

Tungsten nail sinker has the added benefit of being smaller than lead, thus reducing impedance of hook set. Tungsten nail sinker features barbs to help keep the sinker in place and ridges to prevent them from slipping out of the plastic. They can be took up in your tackle box, if consider carrying a few of these weights on hand, just given the limited space.

tungsten-nail-sinker

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Tungsten Carbide Cutting Tool Machining Methods

Details: Category: Tungsten Information; Published on Wednesday, 05 November 2014 18:27; Written by xjq; Hits: 521

Tungsten carbide cutting tool when used in machining has four main machining methods to achieve shape precision, which are movement track method, rapid prototyping, form copying method and generating method.

I. Movement track method

Also known as tool nose movement track method, it achieves shape precision through the movement track of tool nose. When the tungsten carbide cutting tool moves around the workpiece, the surface geometry required will be obtained according to the movement track of the tool nose.

II. Rapid prototyping

It is a kind of machining method carried out by using formed tungsten carbide cutting tools. The cutting edge of formed cutting tools is the shape of workpieces. This method can simplified the machine tool and cutting movement and thus improve efficiency.

III. Form copying method

When form copying method is adopted, the cutting tool will conduct machining according to copying device. The shape precision achieved by adopting form copying method depends on the precision of the copying device and that of its forming movement.

IV. Generating method (generation method)

In this method, the workpiece and the tungsten carbide cutting tool do generating motion during machining. The surface gained by adopting generating method is enveloping surface formed by the generating motion done by the cutting edge and the workpiece. The cutting edge shape must be the conjugate curve of the surface being processed.

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