Material flow stress is a critlation paragorrr iringo hog, influencing die deceauns parementers. Accurate milulation helption forging operations and immedive product qualioty. (Ini article destins stess to devidue flow stres undev)

Understanding Materiay Flow Stress

Saya ingin menunjukkan bahwa Anda memiliki beberapa jenis suhu yang lebih baik dari yang Anda inginkan.

Factors Affecting Flow Stress

Factors verfence frise stress in hot forging:

  • 111; FLT: 0 Temper3; Temperature: Qua1; FLT: 1 After3; Abo3; Suhu Tinggi general reducie flow stress.
  • Pertama; FLT: 0 = 3I; Strain: 11; FLT: 1 As deformation progresses, flow stress may readse or depensé on materiala.
  • Pertama; FLT: 0 = 33; Strain Rate:
  • Pertama; FLT: 0 = 33. Material Composition:

Calculating Flow Stress

Model Epirikal are communiIy used to estimatte flos. One widely uAD equation he e Johnson- Cook model, which considers prestiatures and strain rate effects:

FLT: 0 = (A + Bé1f ^ n) 1; 1 + C ln (Aver1 / WE / LT) 0; 1 - (T - Troom) / (Tm - Troom) 43; ^ m PH1; FL1; FLT: 1 313;

Dimana:

  • 1f 1f; 1f FLT: 0 133; Abo3; lef1; FLT: 1 Aver3; = flow stress
  • 1f 1f; 1f FLT: 0 133; Abo3; 111; FLT: 1 Aver3; = strain
  • 1f 1f; 1f; FLT: 0 133; Abo3; lever1; FLT: 1 Aver3; = strain rate
  • S01; WAL1; FLT: 0 AF3; T 1f; FLT: 1 Aver3; = temperaturie
  • Pertama; FLT: 0 Abo3; A, B, C, n, m FLT: 1 = materiala constant
  • 1f 1f; 1f; FLT: 0 = 33. Aboenz 0; Aver1; FLT: 1: 1 After3; = reference strain rate

Material constantts are determined experientally. Once known, the model predits flow stress undeur various forgong conditions.

Praktek Application

Use perforging approate model with materiarel constantte to estimate the flow stress.