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Effect of sintering time on the apparent density and the final dimensions of the produced compact by technique metal powders

تأثير زمن التلبيد الحراري على الكثافة الظاهرية و الأبعاد النهائية للمدمج المنتج بتقانة المساحيق المعدنية

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 Publication date 2016
and research's language is العربية
 Created by Shamra Editor




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In this search, has been studied set of practical experiences for compacting several metal powders composed a metallic alloy based iron from powders with a proposed geometric shapes (cylindrical). Several tests were done in order to reach the relationship between the final apparent density for the compact with a sintering time, and study changing the geometric dimensions of the final compact after the completion of sintering process during different time periods. The tests and Measurement results had been demonstrated that sintering time affect positively on the apparent density of the final compact which Manufactured by technique metal powders, and thus will increase its strength, where proportionality is directly proportional access even to a certain extent. And also its effect was an obvious shrinking diameters samples used in the tests. And changing (increase or decrease) in height samples. Search has shown the great importance of the follow-up studying and analyzing the relationships which associate that variables of metal powders technique each other, and their different effect on the final compact.


Artificial intelligence review:
Research summary
تتناول هذه الدراسة تأثير زمن التلبيد الحراري على الكثافة الظاهرية والأبعاد النهائية للمدمجات المصنعة بتقانة المساحيق المعدنية. تم إجراء مجموعة من التجارب على خليطة معدنية أساسها الحديد بأشكال هندسية أسطوانية، بهدف تحديد العلاقة بين الكثافة الظاهرية النهائية وزمن التلبيد الحراري، وكذلك دراسة التغيرات في الأبعاد الهندسية للمدمجات بعد التلبيد. أظهرت النتائج أن زيادة زمن التلبيد تؤدي إلى زيادة الكثافة الظاهرية للمدمج، مما يعزز من متانته، كما تؤدي إلى تقلص أقطار العينات وتغير ارتفاعها. توصلت الدراسة إلى أهمية متابعة دراسة العلاقات بين متغيرات تقانة تدميج المساحيق المعدنية وتأثيراتها المختلفة على المدمج النهائي.
Critical review
تُعد هذه الدراسة خطوة مهمة في فهم تأثير زمن التلبيد الحراري على خصائص المدمجات المصنعة بتقانة المساحيق المعدنية. ومع ذلك، يمكن توجيه بعض النقد البناء لتحسين البحث. أولاً، كان من الممكن توسيع نطاق العينات المستخدمة لتشمل أشكال هندسية مختلفة وليس فقط الأسطوانية، مما قد يوفر نتائج أكثر شمولية. ثانياً، لم يتم التطرق بشكل كافٍ إلى تأثير العوامل الأخرى مثل درجة الحرارة وضغط التدميج على النتائج، وهو ما يمكن أن يكون له تأثير كبير على الكثافة الظاهرية والأبعاد النهائية. وأخيراً، كان من الممكن استخدام تقنيات تحليلية أكثر تقدماً لتحليل البيانات، مما قد يوفر دقة أكبر في النتائج.
Questions related to the research
  1. ما هو الهدف الرئيسي من هذه الدراسة؟

    الهدف الرئيسي هو دراسة تأثير زمن التلبيد الحراري على الكثافة الظاهرية والأبعاد النهائية للمدمجات المصنعة بتقانة المساحيق المعدنية.

  2. ما هي النتائج الرئيسية التي توصلت إليها الدراسة؟

    توصلت الدراسة إلى أن زيادة زمن التلبيد الحراري تؤدي إلى زيادة الكثافة الظاهرية للمدمج، مما يعزز من متانته، كما تؤدي إلى تقلص أقطار العينات وتغير ارتفاعها.

  3. ما هي الأهمية العملية لهذه الدراسة؟

    تساعد هذه الدراسة في تحسين عمليات الإنتاج المؤتمتة الخاصة بالمساحيق المعدنية من خلال فهم أفضل للعلاقات بين متغيرات عملية التدميج والتلبيد الحراري وتأثيراتها على المدمج النهائي.

  4. ما هي التوصيات التي قدمتها الدراسة لمزيد من الأبحاث؟

    توصي الدراسة بمتابعة دراسة وتحليل العلاقات بين متغيرات عملية التدميج والتلبيد الحراري وتأثيراتها المختلفة على المدمج النهائي، واستخدام تقنيات تحليلية أكثر تقدماً لتحليل البيانات.


References used
Powder metal technologies and applications, vol.7 of , ASM metals Handbook, USA 1998, p2762
SRIDHAR,I.A ;FLEC,N.A. Yield Behaviour of Cold Compacted Composite Powders, Acta Metallurgica Inc, vol 48 (2000) 3341-3352
ORBA,R.L.: New Research Directions in powder metallurgy, Reports in physics, Romanian, 2004 Volume 56, NO.3, P.505 – 516
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