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What are the advantages of CNC machining of radiator parts?

For friends who have been in contact with the radiator component industry, they often see or hear "CNC machining", but too much exposure does not necessarily mean that many people understand. In fact, many questions are still about CNC machining. What are the advantages? Let's take a closer look. CNC machining is an index-controlled machine tool machining, which is a method of using digital information to control the machining process. Traditional mechanical processing is done manually by machine tools. During processing, the mechanical cutter is shaken to cut metal, and the accuracy is measured with calipers and other tools. However, traditional artificial intelligence processing is far from being able to meet the needs of production development. Therefore, the emergence of CNC machining provides the possibility for the standardization, precision and efficiency of mechanical product processing. The CNC machining process in the radiator component industry also shines. The

Investment Casting Materials and Manufacturing Process

Mold material The performance of the molding material should not only ensure the convenient production of investment molds with accurate dimensions and high surface finish, good strength and light weight, but also create conditions for the manufacture of mold shells and good castings. Molding materials are generally formulated with waxes, natural resins and plastics (synthetic resins). All mold materials mainly prepared with wax materials are called wax-based mold materials, and their melting point is low, 60~70 ° C; all mold materials mainly prepared with natural resins are called resin-based mold materials, with a slightly higher melting point, about 70 °C. ~120℃.   Precision Investment Castings China prototype company service include :  High Quality Investment Casting Parts Custom , Lost Wax Investment Casting Sand Casting , Lost Foam Casting , Gravity Casting , Die Casting , Graphite Casting , Casting Moldsmanufacturers . Manufacture of Folding Investments In t

알루미늄 합금 다이캐스팅의 단점을 해결하는 것이 편리합니다!

알루미늄 합금 다이캐스팅은 현재 현재의 전자제품 , 자동차 , 생활필수품 등 많은 산업과 분야에서 널리 사용되고 있습니다 . 그러나 알루미늄 합금 다이캐스팅에서 자주 발생하는 몇 가지 결함 및 해결 방법은 다음과 같습니다 .   알루미늄 합금 다이캐스팅   1. 불순물   알루미늄 합금 다이 캐스팅의 불순물 문제는 주로 특정 온도에서 알루미늄 , 규소 및 다량의 철 , 망간 , 크롬 및 기타 화합물을 포함하는 결정립과 일부 산화물로 구성됩니다 .   해결책 : 알루미늄 잉곳의 조성을 엄격하게 제어하고 , 제련로의 난로를 정기적으로 청소하고 , 정기적으로 슬래그를 처리하면 문제를 해결할 수 있습니다 .   2. 구강 문제   다공성은 다이캐스팅 부품의 내부 또는 표면에 나타나는 다양한 크기의 구멍을 말하며 , 이는 다이캐스팅 부품의 경도 부족으로 이어져 표면의 외관에 영향을 줍니다 .   Solution: 적절한 정제제를 사용하여 모공을 처리하고 , 공정을 조정하고 , 저속을 적절하게 줄이고 , 이형제가 너무 많이 분사되어 모공 문제가 해결되지 않는지 확인하십시오 .   3. 균열 문제   균열은 알루미늄 합금 다이캐스팅의 매트릭스가 파괴되고 , 외력의 작용에 따라 확장되는 경향이 있는 선형 또는 기타 라인인 기다란 틈이 형성되는 것을 의미합니다 .   솔루션 : 합금 조성을 올바르게 제어하고 , 냉각수 회로를 늘리고 , 알루미늄 합금 다이캐스팅의 구조를 변경하고 , 사출 위치를 변경하거나 증가시키면 해결할 수 있습니다 . PINJIN 서비스에는 다음이 포함됩니다 . 알루미늄 다이캐스팅 , 아연 다이캐스팅 , 마그네슘 다이캐스팅 , 투자 주조 , 모

Ceras surface technology for CNC machining

CNC Machined glass process

Plate cutting ―― CNC ―― Cleaning inspection ―― Reinforcement ―― Prepress inspection ―― Wire mesh ―― AF ―― Packaging

Cnc Machining: precision engraving machine, grinding wheel, brick, stone wheel, hole machining

  • 1. Rotating hole: The tip spreads spirally
  • 2. Rough reamer processing: Horizontal rough cutting through holes
  • 3. Finishing: Use fine sand grooves to refine the contours of the holes and machine the inverted shape.

Open rough: using coarse sand to remove all corners

Finishing: Fine grinding of products and edge processing using fine sand grooves

Introduction of glass cutting fluid

Suitable for glass, plexiglass, optical glass, flat glass, camera lenses, eyeglass lenses, sapphire glass, magnets, quartz optical products, fine marble, gourmet granite, ceramic wafers. CRT glass cutting for TV recorders, rust prevention cooling during the grinding process.
Performance characteristics

  • 1. With good cleaning and penetration performance, good self-sharpness to grinding, increase the cutting force of diamond tools, extend the life of diamond tools and shorten the processing time of workpieces.
  • 2. Excellent lubrication performance, significantly reduces noise generated when cutting workpieces, avoids sparks when cutting workpieces, reduces wear scratches, and significantly improves surface quality of workpieces.
  • 3 can effectively reduce the risk of corrosion of various factors on the glass.
  • 4. Excellent non-foaming performance, excellent chipping function.
  • 5. Good rust prevention performance, corrosion prevention performance, good product stability and long life.
  • 6. Water-based transparent formulation, working fluid, high transparency, high cleanliness
  • 7. Water-based eco-friendly products, unique cleaning and cleaning performance, all kinds of oil on cooling liquid, easy to clean;
  • 8. Performance is mild, but machine paint is hard to remove.

Base fixture

The surface of the fixture should be smooth and burr-free, and should be chamfered at right angles to prevent scratches on the product.
The true negative air pressure should be> -0.7 bar (-0.07 ± 0.02 MPa).
Each shift should be checked to see if the angle is worn and replaced.

Analysis of glass processing abnormalities and countermeasures

1.1 Common bad types: Glass Processing Edge breakage

  • 1, the edge is broken.
  • 2, collapse of sand in the hole
  • 3, bright border
  • 4, hurt
  • 5, R angle deformation
  • 6, deformation of holes
  • 7, slot avalanche
  • 8, burning edge

2.1 Bad edge damage

The disadvantage of edge breakage is that it cannot be repaired beyond 0.05 mm in height.

The defect height of the sand collapse is 0.03 mm or less and can be repaired.

Causes and countermeasures for edge damage

Shape edge, groove edge, edge damage cause and indefinite position processing method

Rough sand grinding: Change of grinding depth

Coarse speed is too fast: Decrease machining feed rate

Reducing the cutting fluid flow rate has an inadequate cooling effect: the spindle speed is reduced and the cutting fluid flow rate is adjusted.

Roughing is kept too low: change machining program to increase reserve

Lifting the tip or tip of a downhole, causing and handling collapse at a fixed position

Wheel tip wear: Replace new wheel

Grinding Wheel Oversized Tolerance: Check the size of the grindstone rod and cannot use the upper limit size

Collision with glass during cutting or lifting: machining simulation, checking machining paths, and modifying machining programs

The feed rate for drilling is too fast and the spiral depth is too large, resulting in lower spiral machining speed and spiral depth.

2.4, Bad Boundary Phenomenon:

The usual straightening of glass surfaces is a matte finish that glows when untreated.

Bad reasons for bright borders:

1> Product misalignment

Worker customs are not standardized

Mounting angle

2> Positioning during product processing

Negative air pressure is not enough to suck the glass

The product size is too small, resulting in poor glass absorption

Machining speed is too fast, cutting amount is too large, machining resistance is too high

  • Bad bright border measures
  • Operator technical training
  • Check / replace new corner
  • Negative pressure check
  • Change handlers to reduce processing speed and cutting volume
  • Pad paper, increase friction
  • Improve alkalinity to increase adsorption area

Bad scratch

  • Areas shaped like dots, lines, scratches on the glass surface
  • Bad scratch measurement
  • One-sided principle, the principle of keeping the side of the glass
  • Base movement and requirement cleaning
  • Check the corners of the base, sand with fine sandpaper and remove burrs
  • After checking the incoming and cleaning materials, check for scratches, locate the scratches and remove
  • Change the design of the base to reduce the contact area of ​​the base
  • Bad scratch measurement
  • The large glass base can be sucked through the surrounding air ducts, and the hollow base is designed to reduce the contact area between the glass and the base and reduce scratches.

2.5, R angle deformation phenomenon

The radius angle is deformed and is mainly displayed in the contour / groove of the tool position.

Causes and countermeasures due to R-angle deformation

After the wheel rod wears, the small and coarse diameters do not match the actual program settings. After adjusting the tool correction, the arc and tangent are not completely tangent to generate the tool mark.

Change the knife and knife path to a smaller angle to smooth the intersection and avoid tool marks

  • X, Y axis bearing wear
  • Equipment maintenance
  • program
  • Graphic distortion
  • Program output handler calculation error
  • The diameter of the circle and the diameter of the tool are 12 decimal places and are set to hold.
  • Calculation error occurs because the coordinate value calculation is too large
  • Analyze point data using MCU software
  • The processing value is set to an integer value of 0.01

Holes and Undesirable Phenomenon Corners

The collapse of the gap is a gap in an upright posture, which is different from the gap on the collapse side.

Defects in slot and horn collapse:

Fracture of the cutting residue results in a large gap, and the larger the area of the remaining material, the larger the resulting gap.

Countermeasures for slot and corner collapse:

  • Slow down and reduce fractures
  • Increase crack opening to cover collapse

Processing order:

Rough shape-Shape complete-Rotating hole drilling-Rough hole drilling-Hole finishing

Roughing of shape-Tool parameter item:

Make sure the tool is selected correctly. The tool type is usually a common flat tool. The diameter of the tool refers to the diameter of the grindstone.

Set the machining speed. Machining speed is divided into “feed speed”, “low speed”, and “lifting speed”.

Feed speed: Refers to the normal processing walking speed. The setting range is usually 1000 to 1100

Upper knife speed: Tool speed from safe height to machining depth before normal machining begins. Setting range 3000-5000

Lift knife speed: The speed of the tool from the machining depth to the safe height after normal machining is completed. Setting range 3000-5000

3. Set the spindle speed. Spindle speeds typically use the machine’s default speed and usually do not need to be set. It should be set only when the program control speed is required. The setting range is 35000-45000 (depending on your actual needs).

Roughing-Milling Parameters:
Check the height and depth settings. The main settings are “reference height” and “depth”. The reference height, also known as the safety height, refers to the height of the tool when it is moving with an empty stroke. The setting range is usually 2.0-5.0 to avoid the tool hitting the workpiece while switching the lower bound.
Depth refers to the depth of processing during normal processing. The set value is usually negative. Process according to the processing dimensions of the grinding wheel.

Calibration mode and orientation settings
The calibration mode usually uses “computer” mode and “2” mode. Machine tool compensation is not enabled when Computer mode is set. When “2” mode is set, the tool offset of the machine is enabled.
The correction direction is divided into “left” and “right”. Normally, “left” is set to mill down and “right” is set to mill up. As the name implies, set the XY reserve to hold the edge processing profile. Setting it to a positive number increases the external size. A negative value reduces the external size. If it is coarse, you need to set a spare amount. Usually set to 0.1-0.15.

Shape Finishing-Tool Parameter Item:
The finishing tool uses a fine sand smelting tank with a wheel bar. Create a new tool and set the diameter (slot diameter) in the magazine
The finish feed rate is usually set to 700-900.
Other settings are the same as the coarse settings

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