In actual work, we will encounter some special machining phenomenon, such as machining a larger diameter hole, or bottom of hole should beflat. Today, here we introduce reaming and countersinking, let’s go.
Countersink Holes usually involves countersinking flat-bottomed hole and countersinking tapered counter bore.
Carpenter Drill Bit: The carpenter drill bit for drilling wood there has larger amount of stock removal. Generally, it is made of ordinary carbon steel, the manufacturing process of the carpenter drill is simple, such as forging, stamping, grinding, etc.
Metal Drill Bit: Generally, the metal drill bit is made of alloy of hardness or HHS(high-speed steel), etc. The metal drill bit is cast and molded, after that to be grinded by grinding wheel on the grinding machine. Its manufacturing process is more complicated than carpenter drill bit.
Peculiarities of Drilling Machining
The drilling machining is one of the most difficult machiningin metal machining, cause of that:
1th: Holesmachiningare the forming machining, the design of drill bit is good or not that directlyeffects on the accuracyof bore diameter.
2nd: The blade is in the hole, cooling is difficult.Continue reading
The drill bits are special cutters that are used to drill through holes or blind holes in solid materials, and also reaming holes in existing holes. The most commonly used drills are twist drill, flat drill, centre drill, deep-hole drill and trepanning drill. Although reaming drill and M drill can’t be drilled holes in solid material, but they are also customary to put them in the drill bit classes.
Classification of drill bits are: HHS drill bits, carbide drill bits, tungsten drill bits.
How to throw off frustrated drill bit sharpening work?
Traditional Grinding Drill Bit by Hand
What is the fixture of drilling machine? For this answer, check out our technical article.[What is the fixture of the drilling machine?] Web page link: http://www.drillbitgrinder.com/what-is-the-fixture-of-the-drilling-machine/
You know the fixture of the drilling machine, but do you know the features of drill jig?
What is the features of the drill jig?
Generally, the features of drilling holes of workpiece in drill jig as follow:Continue reading
Fixture of drilling machine is shorted for drilling machine die that is used to process holes and threads. The Fixture is mainly composed of drill bush, location device and clamping device, etc. Due to feeds less movement and the structural features, drilling machining tends to be lower precision, led to uncomfortably guarantee the accuracy of multi-holes drilling, so that, fixture of drilling machine plays a decisive role in drilling accuracy, and also fixture of drilling machine is the most widely used in all fixtures.
The type of drilling jig is fixed in the position of the drilling machine, and it has higher processing accuracy, mainly used for drilling single hole with larger diameter in vertical drilling machine, and parallel hole-series in radial drilling machine.Continue reading
Fixture of boring machine is also known as boring jig that is a delicate fixture, mainly be used in processing holes or hole series box components.
Fixture of boring machine is mainly composed of base, holder, sleeve, bar, location device and clamping device. Mainly used for processing precision hole and hole series.
Composition of Boring Jig
In order to improve the safety awareness of employees, the skills of safety operation, the knowledge of safety production, PURROS has conducted training on the safety production of new employees.The purpose of this training is to let employees remember the safety production regulations and safe operating procedures, protection of production run smoothly, improve the work efficiency, improve the overall quality of employees.
PURROS conducts safety training seminars
The one of the oldest metal removal machines, has a number of useful and highly desirable attributes. Today these lathes are used primarily in small factories where smaller quantities rather than large production runs are encountered.
How to choose the right machine tool
