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Cemented carbide gun drill - GD-02

Ten years' experience in factory production, A variety of sizes for choose, Passed ISO9001:2000, Excellent after-sales, OEM - more info check here: //www.buyindustrialtools.com/Cemented-carbide-gun-drill-10039197/

Quick Brief

Place of Origin: Shaanxi China (Mainland) Brand Name: Bang Yu Model Number: GD-02 Type: Spade Drill Bit Material: High Speed Steel Use: Wood Drilling Gun Drill length: 200-5500mm or OEM Head diameter: 4-40mm or OEM After-sale service: for whole using of life Spare parts: for whole year

Product Features:

Ten years' experience in factory production

A variety of sizes for choose

Passed ISO9001:2000

Excellent after-sales

OEM

Business Terms:

Port: CN air or sea port

Minimum Order Quantity: 1 Rod/Rods

Supply Ability: 1000 Rod/Rods per Week

Payment Terms: L/C,D/A,D/P,T/T,Western Union,MoneyGram

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Cemented carbide gun drill
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Product Packagings & Delivery Terms:

Packaging Detail: each piece with pvc tube, carton outside or upon clients' requirements

Delivery Detail: 7-10days

Specifications and Product Details:

The hard alloy drill gun represents the advanced and highly-efficient hole processing technology.It can not only be applied to deep-hole (diameter-length ratio1:250) processing, but also the shallow-hole processing(diameter-length ratio1:1). It consists of three parts, the drill handle, drill rod and drill head by welding them together with a throughhole in the middle, which applies to the drilling of cast iron, carbon steel, copper, aluminum alloy, alloy steel, etc. The product combines the process of drilling, boring and broaching in one step, making holes of high accuracy(IT6-8 level), precise straightness(0.16-0.33mm/1000mm) and low toughness in one time feeding(Ra3.2-Ra0.1). The drilling speed can reach 30-100meter/minute or above. The hard alloy drill gun (depth drill) is an ideal hole finishing tool with its head adopting the entire hard alloy or empiecement structure, featuring high durability and high precision. With the dimensional precision of the processed hole being up to H7, and good straightness<0.1/1000mm, roundness≤0.005mm and surface roughness≤Ra0.8um, the product has been extensively applied in industries such as the machine tool, automobiles, aviation, motor locomotive, chemical machinery, oil nozzles and pumps, mining machinery, hydraulic parts, etc.

Bangyu series drill guns can be used on the equipment which meets the requirements for drill gun cooling and direction guiding such as the special deep-hole processing machine, processing center, turning center, etc. and can be used for the processing of carbon steel, stainless steel, cast iron, non-ferrous metal, as well as wood and plastics. Bangyu company will provide customers with the optimized cutting technology parameters according to their machine tool conditions to ensure the best cutting performance of drill guns. To ensure drill guns' long-term, smooth and reliable working performance, the company supplies with the drill gun the integrated rough/finishing diamond grinding12A2/45° wheels which will enable the rough grinding and finishing grinding to be achieved by one time loading of the drill gun so as to greatly improve the efficiency and quality of the grinding process. We ensure the processing property and quality of the grinded drill guns close to that of new ones. We ensure the smooth drilling of drill guns.
Ordering instructions:
1. When ordering, the information including the diameter of gun drill bit, tolerance (or processed aperture and tolerance) and full length of gun drill must be made clear.

2. It is necessary to set forth the information concerning the shape and size of processed materials and gun drill handles.

Drill bit is the key part of gun drill. Due to its unique and scientific combination structure, it plays the role of not only cutwork but also self-orientation, and can create high-precision deep holes through the linear penetration. There are two basic degrees for drill bits, which can be properly combined according to the materials and forms of workpieces to be cut, so as to better balance the cutting force and break chips, and transmit the cutting force to support shoulders to ensure good straightness and axiality. Drill bit has a small backtaper degree and its diameter is slightly large by comparing to the blade, which can guarantee the drill can rotate freely inside the cutting hole and will not rub the cutting surfaces of inside walls of holes. According to different requirements, the blade can be connected to the oil path of blade through the channel with single circular hole, kidney-shaped hole or two circular holes. High pressure coolant can reach the cutting point through this channel, and bring the cutting chips out of workpiece.eometry of drill bit directly affects the performance of gun drill in terms of cutting and processing, and the precision of holes to be processed.

Blade is generally designed into the "V" type, with the external diameter slightly smaller than that of drill bit. Under the premise of ensuring sufficient strength and stiffness of blade, the coolant hole and chip removal space should be made as large as possible to facilitate the cooling, lubrication and chip removal of drilling bit part. Bangyu series of blades are rolled down by seamless steel tubes after the heat treatment. Blade has 120 ~ 165 ° of V-type slot, through which the high-pressure cutting coolant will be discharged from the hole after its reaching the grill bit part through the drive handle and aviation oil hole of blade, with the chip taken away. To ensure the straightness and axiality, the blade must have sufficient strength in order to provide the torque required for cutting under less torsional deformation. At the same time, the blade must have sufficient toughness, so as to absorb the vibration generated by high-speed rotation of blade.

Driving handle is mainly used to transmit forces. Bangyu Company can provide customers with standard handles categorized into 8 kinds and with 9 specifications. Customers can also customize the non-standard blade handles. They will be produced in full accordance with the provisions of standard industrial process. At the neck position where it connects with the blade, there is a smooth fox-like groove used to eliminate stresses, which can help avoid the damage caused by the stress concentration. See the table below for the information concerning forms of driving handles.

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For more details, please contact us.

Trade manager account: cn.1000601983

Website: www.sxbangyu.en.alibaba.com

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