Abstract
Investigations of Processes of Compacting of Tribotechnical Powder Materials Based on Dispersed-Strengthened Copper
Highlights
Creation of theoretical and technological foundations of antifriction powder materials using dispersedstrengthened copper powders is urgent task, requiring a dependency determination of properties of the final product on the conditions of its receipt
The purpose of this paper is to study the processes of obtaining products from powder materials based on dispersedstrengthened copper by hot stamping of current collector by electric vehicles
Ключевые слова: дисперсноупрочненная медь; токосъемники; плотность; твердость; предел прочности на изгиб; удельное электросопротивление; нагрев; штамповка; структура
Summary
Creation of theoretical and technological foundations of antifriction powder materials using dispersedstrengthened copper powders is urgent task, requiring a dependency determination of properties of the final product on the conditions of its receipt. Dependence of properties of antifriction materials by electric vehicles (current collector) from the conditions of their manufacture compacting porous hot stamped billets was established. Optimum conditions to obtain materials with maximum density, hardness, ultimate tensile strength and flexural specific minimum electrical output of billets are part blanks heated at the temperatures 900—950 °С for 15—20 min and their following stamping on specific energy of 200—250 N⋅m/cm. Перспективними для створення антифрикційних порошкових виробів електротехнічного призначення можуть бути матеріали на основі міді. Тому в подальшому доцільним є дослідження умов компактування матеріалів на основі таких порошків з метою визначення перспективних методів виготовлення виробів із них. Тому вивчення процесів компактування виробів із нових порошкових матеріалів на основі порошків дисперснозміцненої міді є досить актуальною задачею
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