How to deburr, descale, deflash, finish and polish precision aluminum alloy die casting gearbox housing

Deburring, deflashing, descaling, finishing and polishing technology for precision aluminum alloy die casting gearbox housing

Aluminum alloy die-castings are widely used in the production and manufacturing of mechanical parts in the electronics, automobile, aircraft, shipbuilding, motor, home appliance and other industries. They have the advantages of beautiful appearance, light weight, high strength and corrosion resistance. However, defects such as burrs, flash, and sharp edge often occur during the production process, so the surface finishing process of the product is particularly important. In this case, we will share a process technology and method for the automated and efficient deburring, deflashing, descaling of aluminum alloy die-casting parts for automobile gearbox housings. This polishing process solution is also suitable for the surface finishing of other die-casting parts made of soft metal materials such as zinc, magnesium, and copper.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

deburring,deflashing, descaling and polishing effect of aluminum die-casting gearbox housing

1. Aluminum alloy die-casting gearbox housing before polishing
surface burrs, oxide scale of aluminum die-cast gearbox housing

Materials:

aluminum alloy

Appearance:

deges burrs，surface oxide scale.

Shape:

irregular shape

Size:

300*260*150 MM

Pre-polishing process:

high pressure casting

Post-polishing process:

packing

2. Finishing and polishing requirements
  • deburring,deflashing,descaling.
  • smooth,bright surface, no burrs, no oxide scale.
3. Aluminum alloy die-casting gearbox housing polishing process details:
Process steps （1） finish to deburr,deflash,descale （2） cleaning （3） vibratory drying
Machinery and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Speed highest highest highest
Tumbling media Cone resin media Angle cut cylinder porcelain media corn cob polishing media
Abrasive media to workpiece ratio 4：1 4：1 8：1
Finishing and polishing compound finishing liquid cleaning liquid no
Water appropriate amount, liquid level does not exceed abrasive media appropriate amount, liquid level does not exceed abrasive media no
Polishing time 60 minutes 15 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. The effect of deburring, deflashing, descaling and polishing the aluminum alloy die-casting gearbox housing
deburring, deflashing, descaling, polishing, brightening effect of aluminum alloy gearbox housing
finishing, polishing, burnishing effect of aluminum alloy gearbox housing

5. Additional instructions
  • The gearbox housing is produced by high-pressure casting of aluminum alloy. The product has high precision and a smooth surface, but burrs and flashes will appear on the edges and holes of surface, which need to be polished. Therefore, a finishing process combining rough deburring, deflashing, descaling and cleaning is adopted. The rough finishing adopts a vibratory finisher with medium cutting force cone plastic media. The sharp angle of the tumbling media can reach into the grooves, corners and inner walls to remove burrs and flash.
    A vibratory polishing machine is used for cleaning. The abrasive media is made of precision finishing material without cutting force angle cut cylinder porcelain polishing media. This tumbling porcelain media has a high density and has a polishing and brightening effect, which can further reduce the surface roughness.
  • In order to improve the anti-rust performance of the product after water treatment, use a vibrating dryer with corn cob drying media to absorb moisture and dry the inner and outer surfaces.

6. Final summary
  • In this case, we demonstrated the process solution of automated deburring, deflashing, descaling and polishing of a precision die-cast aluminum product, a gearbox housing, used in the automotive parts industry.
  • If you need professional technical support for the polishing of the following aluminum alloy, zinc alloy, magnesium alloy or copper alloy die-cast parts, you can refer to the above cases:
    Deburring, deflashing process technology methods for aluminum alloy die-casting automobile and motorcycle gearbox housings parts polishing process methods
    Automated deburring of aluminum alloy die-castings
    Deburring equipment for die-castings
    How to remove aluminum alloy burrs
    How to deal with aluminum alloy surface burrs
    How to deburr aluminum alloy auto parts
    Deburring methods for die-cast aluminum
    The best way to deburr die-cast aluminum parts
    Die-cast aluminum polishing and brightening technology
    How to deal with die-cast aluminum polishing
    Automated and efficient die-casting polishing and deburring solutions
    Surface treatment methods for aluminum alloy die-castings
    What are the surface treatment processes for aluminum alloy die-castings

How to deburr, descale, polish carbide mechanical seal parts?

Finishing and polishing technology of mechanical seal parts of cemented carbide products

Mechanical seals are precise and complex basic mechanical components. Commonly used metal materials include hard alloys (such as tungsten carbide), high silicon iron, nickel-chromium steel, chrome steel, bronze, carbon steel and cast iron, etc., which will produce burrs, flash, scratches, oxide scale and other defects during the manufacturing process. Do you know what kind of finishing and polishing process mechanical seal parts need to go through to obtain a satisfactory surface effect? ​​In this case, we will share the process technology and methods of deburring, derusting, descaling, polishing and brightening of a hard alloy mechanical seal product. This polishing process solution is also suitable for the surface polishing of sealing parts made by other hard metal materials.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

deburring, derusting and polishing effect of carbide mechanical seal

1. Cemented carbide mechanical seal before polishing
burrs and oxide scale on the surface of mechanical seals of carbide parts before polishing

Materials:

tungsten carbide

Appearance:

edge burrs, surface oxide scale

Shape:

circular

Size:

D 50MM

Pre-polishing process:

powder metallurgy

Post-polishing process:

product assembly

2. Finishing and polishing requirements
  • chamfer and remove flash, grooves without burrs.
  • smooth, bright surface, no burrs, no oxide scale.
3. Details of carbide mechanical seal polishing process:
Process steps （1） rough finishing of chamfering, deburring, descaling （2） fine polishing （3） anti-rust drying
Machinery and equipment centrifugal disc finishing machine centrifugal barrel finishing machine vibratory dryer
Speed highest highest highest
Tumbling media straight cut tri-angle ceramic media 3P finishing media corn cob drying media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, liquid level is 20mm above the tumbling media appropriate amount, liquid level is 20mm above the tumbling media no
Polishing time 30 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. Finishing and polishing effect of cemented carbide mechanical seal
deburring, descaling, chamfering, polishing, brightening effect of cemented carbide parts mechanical seal
mass finishing, polishing, burnishing, brightening effect of cemented carbide parts mechanical seal

5. Additional instructions
  • The hardness of tungsten carbide is generally between HRA87 and 94. The product volume is not large, so a centrifugal disc finisher is used, with heavy cutting force straight cut tri-angle ceramic media for rough finishing. The sharp tip of the tumbling media can reach into the groove to remove burrs and chamfers.
    Fine polishing uses a centrifugal barrel finisher with high centrifugal force, so the tumbling media uses high-hardness 3P fine polishing media, which can cut lightly, further reduce the roughness and improve the surface brightness.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a anti-rust liquid for anti-rust treatment after polishing. Finally, a a href=”http://www.shinetec.tech/index.php/en/product/vibratory-dryer-vibrating-drying-machine/” target=”_blank” rel=”noopener”>vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of chamfering, deburring, descaling, polishing and brightening the surface of a mechanical seal part made of tungsten carbide.
  • If you need professional technical support for the following mechanical seal product polishing issues, you can refer to the above cases:
    Mechanical seal polishing process technology
    Mechanical seal deburring process technology
    Mechanical parts polishing process technology
    Mechanical parts deburring process technology
    Metal parts polishing
    What abrasive is suitable for carbide polishing
    Introduction to carbide polishing technology
    Carbide deburring polishing process
    How to polish carbide
    What to use for polishing carbide
    Methods for descaling of carbide
    Cemented carbide surface polishing
    What finishing and polishing materials are used for carbide
    Mirror polishing of carbide

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