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    Re: Undercuts Design Guideline

    566 this is product.
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    Undercuts Design Guideline

    hi everyone

    what should be d and D to demould this product from the mold without any damage ?

    is there any formula about this?
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    BMC Polyester Composites

    hi everyone

    due to need for both insulation and strength, BMC Polyester Composites recommended for us as a material.

    Is there a thermoplastic material equivalent to this material (in terms of...
  4. Thread: Clamp Force

    by yangozugur
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    1,643

    Clamp Force

    we have a mold and ı have to choose a plastic ınjection machine for this mold. How can I calculate exact required clamp force?
    Thank you
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    Re: Melt Flow İndex

    ı see
    thank you
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    Melt Flow İndex

    could you share some sources that ı can compare melt flow index of plastics?
  7. Thread: Screw Speed

    by yangozugur
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    1,691

    Re: Screw Speed

    certainly right @ijchan223

    so how about screw speed depends on materials?

    which materials needs higher or slower screw speed ?
  8. Thread: Screw Speed

    by yangozugur
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    1,691

    Screw Speed

    Hi Everyone

    how should ı consider about screw speed ?

    All metarials we use same screw speed ( 60 RPM )

    ı think we should use different screw speed for some special plastic metarials but...
  9. Thread: MoldFlow

    by yangozugur
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    657

    Re: MoldFlow

    main problem is clamp force. ı have to choose a machine . ı analyzed a few mold for clamp force but ı cant create boundary conditions as ı wanted.
    Anyway.
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    Re: Brown spot defect

    did you fix that?
  11. Thread: MoldFlow

    by yangozugur
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    657

    MoldFlow

    Hi everyone

    although ı set ınjection time and flow rate, ınjection time exceeds the value that I have set .

    ı expect that pressure is supposet to be high to complete the filling but moldflow...
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    Back Pressure

    When we should use back pressure?
    How does it affect the product?
  13. Minimum Number of Layer in moldflow meshing

    hello everyone

    can someone help me for minumum number of layer explanation?

    basically it is 10 for plastic parts. When ı increase the mesh element count increase too but it decreases the...
  14. Thread: burn marks?

    by yangozugur
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    Re: burn marks?

    ı thought take ram out to clean with any cleaner but problem come up 3 out of 20 and ı am confusing.
    ı will consider degradation.
    Thank you Josue
    regards.
  15. Thread: burn marks?

    by yangozugur
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    504

    Re: burn marks?

    You'r right
    it's not obviously.
  16. Thread: burn marks?

    by yangozugur
    Replies
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    504

    burn marks?

    What's the mean these marks?

    ı am not sure this is burn marks or something?

    Could it be the black color left over from previous that on nozzle?

    have to say that after 10 products are good a...
  17. Thread: Ram speed

    by yangozugur
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    570

    Re: Ram speed

    Thank you JayDub

    İt works!
  18. Thread: Ram speed

    by yangozugur
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    570

    Re: Ram speed

    Thank you Suhas.

    ıt helps me.

    ı want to ask one more by your leave.

    ı assume that part can filled 3 sn however my ınjection time that put it machine is 8s.

    What would happen?
  19. Thread: Ram speed

    by yangozugur
    Replies
    4
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    570

    Ram speed

    Helle everyone

    we get new plastic ınjection machine and have a problem.

    Machine has speed parameter and it's unit is %. we dont know what is mean.

    when we put a value on speed parameter...
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    Re: Machine setup

    ıt works!
    thank you.
    good work
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    Re: Machine setup

    Thanks your help.

    good work
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    Re: Machine setup

    ı see JayDub, thanks for your help.
    I want to ask another question with your permission.

    while ı checking fill stage ı use ınjection rate and ı put a value(cm3/s) and ı see some results end of...
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    Machine setup

    hi everyone

    ı need to introduce my injection machine in moldflow however ı dont know maxsimum injection ratio of my injection machine.

    ıf ı put a value that random(exp: 5000 cm3/s) Do I have...
  24. Thread: Family Mold

    by yangozugur
    Replies
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    1,074

    Family Mold

    Hi everyone

    ı need your advices.

    we will make a family mold and this will be the first.

    could you share some info. about family molds? (What should be runner dia. and length or any info...
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    Re: Unsolved ınjection problems

    thanks for your interest mr.Rick

    ı dont understand which Some parameters you want so ı cant give any info.
    ı am sorry.

    ı add 2 images for temperatures(Barrel and nozzle temperatures)

    water...
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