Szczegóły publikacji
Opis bibliograficzny
Influence of the drill bit tip geometry on the rotary drilling process performed with a hand-held hydraulic drill / Łukasz BOŁOZ // Production Engineering Archives ; ISSN 2353-5156. — 2023 — t. 29 z. 3, s. 304-310. — Bibliogr. s. 310, Abstr. — Publikacja dostępna online od: 2023-09-11
Autor
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 148349 |
|---|---|
| Data dodania do BaDAP | 2023-09-28 |
| Tekst źródłowy | URL |
| DOI | 10.30657/pea.2023.29.35 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Creative Commons | |
| Czasopismo/seria | Production Engineering Archives |
Abstract
In the mining and construction industries, hand drills are used to carry out many processes related toexcavation and auxiliary works. Hand drilling is commonly applied for making small diameter holes,especially in hard-to-reach places. In the case of manual drilling, an important parameter is drillingresistance, especially torque. Drilling tools are subject to wear, which has a negative impact on theprocess of drilling, including resistance and efficiency. A blunt tool lowers the drilling speed and putsmore strain on the operator. The article presents the results of laboratory tests of selected parametersof the drilling process carried out with a hydraulic rotary drill. The tests were performed with the useof new drill bits as well as drills characterized by a various degree of wear. The tests were carried outfor popular, frequently applied rotary drilling tools, on a unique laboratory stand that enabled settingthe feed force and measuring the torque, rotational speed, drilling path, drilling speed as well as the inand out pressure of the drill. A number of characteristics were determined as a function of time anddepth of the drilled hole. It was found that tool blunting affects the drilling process in various ways,whereas the intensity of this influence is determined by the type of blunting. The test results can pro-vide a basis for developing a criterion for replacing a drill bit with a new one.