Under gauge stabilisers shall be run to centralise the mill, but the number of stabilisers shall be kept to a minimum to prevent excessive torque and bird nesting of cuttings. Normally, a stabiliser is run one or two collars above the mill.

An alloy with a host of unique properties, titanium is often an optimal choice for CNC machined parts with specialized applications. Titanium has an impressive strength-to-weight ratio and is 40% lighter than steel while being only 5% weaker. This makes it perfect for high-tech industries like aerospace, automotive, medical technology and energy. The titanium machining process involves milling down a raw piece of metal into a desired part or component.

Milling shall commence with a low rpm ie., 70 rpm (increasing to a maximum of 140 rpm), dependent on the torque exhibited by the fish and guidelines from Milling Contractor.

We use machine learning algorithms to calculate the exact cost of any machinable part directly from a CAD file, based on millions of CNC machining orders we’ve previously processed. Simply upload a CAD file to generate a quote: Get an instant CNC machining quote.

Protolabs Network offers a state-of-the-art titanium CNC machining service, guaranteeing consistent quality and fast turnaround times. We have over 1,600 milling and turning machines at our disposal, which means capacity is virtually always available and prices are always competitive. Our network of manufacturers is capable of complex titanium machining, allowing us to fulfill orders with a low volume of CNC machined titanium parts as well as more complex titanium machining. Work with us to access our vast CNC titanium machining manufacturing network today.

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A minimum of two ditch magnets shall be used at the shale shakers or flowline. These magnets shall be cleaned regularly and the weight of steel recorded.

Centralisers and scratchers behind casing sometimes cause trouble in milling, although less difficulty is generally encountered if the casing is well centred. For best results, a mill with blades that extend completely over the centralisers (+/- 1.1/2in + casing collar OD) and scratchers shall be used.

3. When milling casing, a rough running or bouncing mill - particularly a pilot mill or a section mill - often indicates that the casing is not well cemented and is wobbling. Reducing table speed should help to overcome this condition.

You can CNC machine your titanium parts by uploading your CAD (.STL) files onto our platform and receiving a quote. You can then submit your parts for production and you will receive them within the quoted lead time.

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Further casing protection can be achieved if required by the use of non-rotating drillpipe protectors, particularly across build up/drop off intervals. Follow general guidelines from the supplier.

Rotation shall start a minimum 1 ft above the fish. WOB and rpm shall be  adjusted to find the best milling rate while noting the rotating torque.

Rubber in association with a fish can cause trouble during milling operations. If rubber is reducing milling rates, the pump pressure should be reduced or the pump stopped for short intervals. The mill should be spudded frequently to help the mill get some bites on the rubber.

The cost of CNC machining titanium depends on the complexity and size of the part and the type of titanium that is used. These variables will affect the type of machine that is required, the time it takes to produce the part, and the cost of the raw material.

New customers receive 20% discount (max. $1,000/€1,000) on custom part orders. Discount automatically applied at the checkout until 30 November 2024.

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Jul 15, 2024 — Tungsten-Carbide: Tungsten carbide which is widely used in cutting tools and abrasives has a melting point of approximately 2,370°C (4,278°F).

IF ..the mill starts to run rough again THEN..BACK OFF on the speed until the mill runs smoothly again and HOLD that speed.

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We offer a complete titanium CNC machining service and can produce custom titanium parts in Titanium Grade 1, Titanium Grade 2 and Titanium Grade 5. Titanium parts are corrosion resistant, quite durable, have a high melting point and are very versatile. Our network of manufacturing partners includes almost every kind of CNC mill and turning center, and is able to machine whatever you need, from simple, ‘as-machined’ workholdings to complex, organic geometries with tight tolerances. When creating titanium machined parts with Protolabs Network, you can apply up to 6 different post-processing/surface finishing options including bead blasting, powder coating, smooth machining and polishing.

Titanium Grade 1 (CNC) is a commercially pure metal with excellent corrosion and impact resistance and good machinability and weldability.

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Fish-like cuttings when pilot milling or section milling (common when milling H-40 pipe) indicate that the penetration rate can be improved by decreasing the weight and increasing the rotary table speed.

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- the yield point of the mud is increased as high as possible prior to commencing milling, taking advice from the fluids engineer.

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The wear pattern on the mill will tell a lot about the performance of the mill in the hole. If the blades have a hook wear pattern, milling is progressing satisfactorily, If the blades are tapered it usually means too much weight was used which flared the top of the fish.

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- the flow is turbulent to prevent cuttings from blocking the annulus, (a minimum annular velocity of 115 ft/min is recommended at BOP’s riser)

In order to provide a high circulation rate all subs and auxiliary tools shall be full bore where possible. The tools shall be picked up, circulated and rotated at regular intervals.

Excellent strength to weight ratio, used in aerospace, automotive and medical industries. Titanium is a metal with excellent strength-to-weight ratio, low thermal expansion and high corrosion resistance that is sterilizable and biocompatible.

When milling inside casing smooth tool joints shall be used and not newly hard faced ones. For deviated wells only, lubricants shall be added to the mud to reduce casing wear.

When milling washpipe, liner or casing, cuttings can accumulate inside the fish. When cuttings removal is not optimum inside the fish, the well shall be periodically cleaned out to bottom with a junk mill or the circulation reversed. Consider using the wellhead wing valve to flush out cuttings at high rate every two hours for 15 minutes.

Titanium has very high strength and a great strength-to-weight ratio. In fact it is only 5% less strong than steel but is 40% lighter making it great for high tech industries such as aerospace, automotive and energy.