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Effect of compaction pressure and velocity on the green compacts roughness that manufactured by metal powder technique

تأثير ضغط و سرعة التدميج على خشونة المدمجات الخضراء المصنعة بتقانة المساحيق المعدنية

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 Publication date 2017
and research's language is العربية
 Created by Shamra Editor




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In this research, It has been studied the effect of compaction pressure on the final roughness for the top and down surfaces for the green compacts that manufactured by meal powder technique and it has been studied also the effect of piston velocity (compaction velocity) on the final roughness for the same two surfaces. The results present that the curved for the top surface roughness is completely decreasing and as the pressure has increased, the value for roughness has reduced and the mean roughness (Ra) has very close values, where these values have made curve from second degree and opposite relationship. The results were same for the down surfaces but with different variations.


Artificial intelligence review:
Research summary
تناول هذا البحث دراسة تأثير ضغط التدميج وسرعة التدميج على خشونة السطوح النهائية للمدمجات الخضراء المصنعة بتقانة المساحيق المعدنية. أظهرت النتائج أن زيادة ضغط التدميج تؤدي إلى انخفاض خشونة السطح العلوي والسفلي للمدمج الأخضر، حيث كانت العلاقة بين الضغط والخشونة عكسية. كما تبين أن تأثير الضغط كان أكبر من تأثير سرعة التدميج. أكدت النتائج أهمية دراسة عوامل ضغط التدميج وسرعة التحميل للمكبس وتأثيرهما الكبير على خشونة السطوح النهائية للمدمجات الخضراء قبل دخولها إلى مرحلة التلبيد، مما يضمن الحصول على سطوح ذات خشونة جيدة بعد عملية التلبيد.
Critical review
دراسة نقدية: يعتبر البحث ذو أهمية كبيرة في مجال تقانة المساحيق المعدنية، حيث يقدم معلومات قيمة حول تأثير عوامل التدميج على خشونة السطوح النهائية للمدمجات الخضراء. ومع ذلك، يمكن تحسين البحث من خلال توسيع نطاق الدراسة لتشمل أنواع أخرى من المساحيق المعدنية وليس فقط الفولاذ السبائكي. كما يمكن إجراء تجارب إضافية لدراسة تأثير عوامل أخرى مثل درجة حرارة التلبيد ومدة التلبيد على خشونة السطوح النهائية. إضافة إلى ذلك، يمكن تحسين توثيق النتائج بتقديم المزيد من الرسوم البيانية والجداول لتوضيح العلاقة بين المتغيرات المختلفة بشكل أفضل.
Questions related to the research
  1. ما هو تأثير ضغط التدميج على خشونة السطح العلوي للمدمج الأخضر؟

    زيادة ضغط التدميج تؤدي إلى انخفاض خشونة السطح العلوي للمدمج الأخضر، حيث كانت العلاقة بين الضغط والخشونة عكسية.

  2. كيف يؤثر سرعة التدميج على خشونة السطح السفلي للمدمج الأخضر؟

    زيادة سرعة التدميج تؤدي إلى تحسين خشونة السطح السفلي للمدمج الأخضر، حيث تتخفض التعرجات على السطح الناتجة عن عملية التدميج.

  3. ما هي أهمية دراسة عوامل ضغط التدميج وسرعة التحميل للمكبس في تقانة المساحيق المعدنية؟

    دراسة هذه العوامل مهمة لأنها تؤثر بشكل كبير على خشونة السطوح النهائية للمدمجات الخضراء، مما يضمن الحصول على سطوح ذات خشونة جيدة بعد عملية التلبيد.

  4. ما هي العلاقة بين الكثافة الخضراء وخشونة السطوح النهائية للمدمجات الخضراء؟

    تتعلق قيم الخشونة مباشرة بالكثافة الخضراء وتوزعها ضمن المدمج الأخضر، حيث تكون الكثافة أكبر في المناطق العليا للمدمج مقارنة بالمناطق السفلى، مما يؤثر على خشونة السطوح النهائية.


References used
P. Jonse´ n, H. Haggblad and M. Nishida," The effect of impact compaction on surface quality of powder discs", DYMAT International Conferences, DYMAT 2009 (2009) 1109–1115_ EDP Sciences, 20098
P.K.Bardhan, R.Behera, S.Patra, G.Sutradhar, " Analysis of Surface Roughness of Machined Surface of Powder Metallurgy Component” International Journal of Scientific & Engineering Research Volume 2, Issue 6, June-2011 1ISSN 2229-5518
Amoljit S. Gill, Sanjeev Kumar, “Surface Roughness Evaluation for EDM of En31 with Cu-Cr-Ni Powder Metallurgy Tool” World Academy of Science, Engineering and Technology International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering Vol:8, No:7, 2014
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