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Reliability analysis of BGA rotary-percussive units for drilling boreholes in rock

✍ Scribed by L. T. Dvornikov; N. I. Gudimov; V. A. Turov; A. P. Davydov

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

The optimum bit geometry for rotary dril

✍ I. I. Kulishenko; V. I. Kovalev; V. F. Vasil'chenko; S. Ya. Sologub 📂 Article 📅 1976 🏛 Springer 🌐 English ⚖ 197 KB

Optimum bit geometry for rotary drilling

✍ I.I. Kulishenko; V.I. Kovalev; V.F. Vasilchenko 📂 Article 📅 1978 🏛 Elsevier Science 🌐 English ⚖ 98 KB 👁 1 views