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Manual processing is the internship we have experienced in college. We need to use our manual work to operate mechanical equipment such as lathe milling machines. This method is generally suitable for the production and processing of parts produced in small batches and is simple and uncomplicated. More advanced technology, it can mass produce and machine parts, and it can also easily process very complex parts. Specifically, parts are produced and machined in a consistent and continuous manner. The basic content of the CNC machining process in PowerWinx is to first determine the machining route of the part and then process it. The detection and rework design of the part, the other is to design the machining parameters, and finally the time setting of the part processing.

 

CNC machining is a very special processing technology. There is now a mechanical engineering college in many universities. Machining is a processing technique that requires a lot of skill .PowerWinx CNC machining will be represented as a representative of all aspects of processing.

Heat Sink Materials: Aluminum vs. Copper:

1. Aluminum Heat Sinks

Aluminum is the most common material for heat sinks. In particular, extruded aluminum heat sinks fit the needs of most projects. The metal is lightweight and has relatively good thermal conductivity.

2. Copper Heat Sinks

Copper has even better thermal conductivity than aluminum. It’s drawbacks, though, are weight and cost. The metal is sometimes used where the importance of thermal conductivity outweighs weight savings.

Heat Sink Types By Manufacturing Process:

· Extruded Heat Sinks

The majority of heat sinks are made from extruded aluminum. The process is useful for most applications. Extruded heat sinks come at a low cost and custom specifications can be easily manufactured. The performance of extruded heat sinks can range from low to high. Their main downside, though, is that dimensions are limited by the maximum width of extrusion. Learn more

· Bonded Heat Sinks

These are normally used for applications that require large-sized heat sinks. One benefit of these is that the base material and fin material can be different. Also, a combination of aluminum and copper fins can be used instead of just one fin material. This allows you to improve thermal performance while adding a minimal amount of weight. Bonded-fin heat sinks generally offer moderate performance and come at a high cost.

· Skived Heat Sinks

Heat sinks produced through this method are normally made from copper. They are produced from a solid block of metal. These heat sinks offer high design flexibility and you can achieve high fin-density. This creates more surface area and opportunity for heat dissipation. They offer medium to high performance, but their drawbacks are generally high weight and directional sensitivity.

· Stamped Heat Sinks

In this process, metal fins are stamped and then soldered onto the base. These are generally used for low-power applications. The advantage of stamped heat sinks is their very low cost due to ease of production automation. However, the biggest drawback is low performance.

·  Forged Heat Sinks

Forged heat sinks are made by compressing aluminum or copper and have many applications. Heat sinks can be cold forged or hot forged. These offer medium performance and can be made at low cost for high volumes. However, they offer limited design capabilities.

· CNC Machined Heat Sinks

These offer high thermal conductivity, and you can achieve the most complex geometries with this process. This means you have plenty of flexibility in your design. But, they come at a high cost and the production time for each piece can make them less-than-ideal for high volumes.

The benefits of using magnesium components in today’s automobiles are compelling. It’s 75% lighter than steel, 33% lighter than aluminum, offers component and feature integration and provides a high dimensional stability that improves fit and finish.

Of course, the medium is only as good as the artist using it, and with manufacturing facilities in 5 countries driven by industry-leading design and engineering prowess, Meridian magnesium die casting continues to demonstrate that they are – indeed – masters of magnesium die casting.

Magnesium is the lightest structural material (1.8g/cm3), magnesium is the 8th most abundant element in the earth’s crust. It occurs naturally in Dolomite, Magnesite, Carnallite and Chloride (sea water).

Magnesium vs Competing Materials

· Vs. Aluminum:

33% Lighter

Superior Machining

Greater Die Life

Large thin-walled near net shape casting

Similar or greater mechanical properties

Greater general corrosion resistance

 

· Vs. Steel:

75% Lighter

Component consolidation/integration (No welding costs & less assembly costs)

Significantly lower tooling costs

High heat conductivity

Complicated thin-walled near net shape

Superior dimensional stability/repeatability

 

· Vs. Plastic:

Stronger

Superior stiffness

Greater energy absorbing capabilities

Higher temperature applications

Large thin-walled near net shape casting