Lathe Operations: Facing

Facing Operations Facing is the process of removing metal from the end of a workpiece to produce a flat surface. Most often, the workpiece is cylindrical, but using a 4-jaw chuck you can face rectangular or odd-shaped work to form cubes and other non-cylindrical shapes.

When a lathe cutting tool removes metal it applies considerable tangential (i.e. lateral or sideways) force to the workpiece. To safely perform a facing operation the end of the workpiece must be positioned close to the jaws of the chuck. The workpiece should not extend more than 2-3 times its diameter from the chuck jaws unless a steady rest is used to support the free end. Cutting Speeds

If you read many books on machining you will find a lot of information about the correct cutting speed for the movement of the cutting tool in relation to the workpiece. You must consider the rotational speed of the workpiece and the movement of the tool relative to the workpiece. Basically, the softer the metal the faster the cutting. D…

Information About Copper Powder

Copper Powder

Copper powder is finely granulated copper that has numerous metallurgic capacities. The powder is less expensive than standard cast copper, so specialists can spare cash on supplies, and it regularly helps save materials in light of the fact that less copper will be required. Copper powder likewise can be made to have diverse densities if took care of by a powder metallurgist, significance the copper can be permeable and impregnated with oils or different metals, or it can be non-permeable like cast copper. Powdered copper is utilized as a combination, in metal-plastic mixes, and in structural applications.

Two principle modern courses of action transform copper, or some other metal, into a powder. In the atomization system, liquid copper is pushed through a slim tube and gas pushes against the stream of metal, creating turbulence and bringing on the liquid copper to powder. With divergent crumbling, copper poles are set in a turning shaft, and a circular segment warms the bars. By utilizing consistent revolution, little bits of the copper will take off, creating the powder.

Cost is a real motivation behind why copper powder is utilized. Obtaining powdered copper is by and large less expensive than purchasing cast copper, so designers and metallurgists can spare their cash for more costly materials. In the meantime, the powder will need to be thrown or worked with to be valuable. This need to be thrown likewise makes the powder adaptable, in light of the fact that it can be utilized as a part of numerous applications without expecting to break down as of now cast copper.

Copper powder frequently is utilized as an alloying powder and is sort of less demanding to work with than cast copper. This is on the grounds that, in its powdered structure, copper is less demanding to high temperature up and blend with different metals. Copper is regularly alloyed with iron and tin, and powdered copper can work the same as cast copper in this coliseum. As a powder, it likewise can be blended with non-metals, for example, plastic to make new substances that are normally utilized for enrichment. Around 70 percent of powdered copper is utilized as a part of making lubing toward oneself up orientation, which exploit powdered copper's permeable nature.

At the point when copper powder is being pushed together as a cast or utilized as a part of different applications, a powder metallurgist will have the capacity to control how permeable the copper is. At exceedingly permeable levels, up to 60 percent, the copper will have openings in it that permit oils and different substances to pass through. Non-permeable powder will be strong, much the same as normal cast copper, making it sturdier.


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