Baoji Dingding titanium | 3D printing titanium alloy substrate additive manufacturing precision bearing cornerstone

As the "core carrier" in the process of additive manufacturing (slm/ebm), 3D printed titanium alloy substrate's plane accuracy, thermal conductivity uniformity and bonding strength directly determine the forming quality and yield of printed parts. Relying on the material advantages and precision processing technology of "China Titanium Valley", Baoji Dingding titanium products Co., Ltd. focuses on the R&D and production of substrates of TC4, TA2, Ti6Al4V Eli and other special brands for 3D printing. Through the "forging+superfinishing" integrated process, the flatness error of the substrate is ≤ 0.01mm/m, and the surface roughness Ra is ≤ 0.8 μ m, which perfectly meets the requirements of high-precision 3D printing in aerospace, medical devices, high-end equipment and other fields.

1、 Core advantage: performance barrier of special substrate for 3D printing

Compared with ordinary metal substrate, 3D printing titanium alloy substrate has an exclusive advantage in adapting to the manufacturing process characteristics of additive materials, and solves the industry pain points such as warpage, falling off and accuracy deviation of printed parts:

Ultra precision plane accuracy

The CNC superfinishing grinder is used for processing. The parallelism of the upper and lower surfaces of the substrate is ≤ 0.02mm, and the flatness error is ≤ 0.01mm/m, so as to ensure that the laser/electron beam energy acts on the printing area evenly and avoid the thickness deviation of the print due to the uneven substrate.

Uniform thermal conductivity

The thermal conductivity of titanium alloy substrate is stable at 17-20w/(m · K). After homogenization heat treatment, the global thermal conductivity deviation is less than or equal to 5%, which can quickly conduct the local heat generated in the printing process and inhibit the warpage and cracking of the print due to thermal stress.

Strong bonding and easy peeling

The substrate surface is pretreated by sandblasting/pickling, and the roughness is accurately controlled at ra1.6-ra3.2 μ m, which not only ensures the firm bonding between the print and the substrate (peel strength ≥ 15MPa), but also realizes nondestructive separation through low-temperature cooling or wire cutting.

High compatibility

The base plate size and mounting hole location can accurately match mainstream 3D printer models such as EOS, SLM solutions, and Huashu high tech. it is resistant to laser/electron beam bombardment, and its service life is 3-5 times longer than that of stainless steel base plate.

2、 Core brand and customized specification: suitable for all types of printing requirements

Focus on the mainstream application scenarios of 3D printing, provide standardized and customized substrate solutions, and cover the printing bearing requirements from micro precision parts to large structural parts:

It supports customization of ultra large size (above 600 × 1200mm) and special-shaped structure baseplate, and can accurately process positioning holes, chamfers, grooves and other structures according to the printer model. The whole process delivery cycle from forging stock to finished product is as low as 10 days, meeting the needs of emergency printing production.

3、 Core application field: accurate landing of 3D printing scene

1. aerospace field: high precision printing and bearing of structural parts

Titanium alloy substrate provides stable bearing for aerospace 3D printing and ensures the forming accuracy of complex structural parts:

-TC4 substrate is suitable for spacecraft micro support printing. The ultra precision flatness ensures that the support wall thickness deviation is ≤ 0.05mm. The uniform thermal conductivity avoids the warpage of the support hollow structure, and the printing yield is increased from 75% to 98%;

-Large size TC4 base plate is used for military aircraft fuel nozzle printing, which is perfectly matched with EOS M400 printer, bearing the high temperature stress in the printing process, and the nozzle channel accuracy is ± 0.02mm.

2. medical device field: security guarantee of medical grade printing

Medical grade titanium alloy substrate meets the biosafety and accuracy requirements of medical device printing:

-Ti6Al4V Eli substrate was used for the printing of artificial hip joint. The substrate was treated with medical grade acid pickling without heavy metal impurities. The adhesion of printed hip joint and bone tissue was increased by 15%, and the postoperative abnormal reaction rate was less than 0.1%;

-The TA2 pure titanium substrate is suitable for dental implant printing, and the surface roughness is accurately controlled to ensure the stable combination of the implant and the substrate. After separation, the surface of the implant is free of damage, and the subsequent polishing process time is shortened.

3. high end equipment and general industry: the core of efficient printing

In high-end equipment and general industrial printing, titanium alloy substrate can be produced efficiently and at low cost:

-TC4 substrate is used for printing precision structural parts of battery packs for new energy vehicles. Thermal conductivity uniformity inhibits thermal deformation of printed parts, making the assembly accuracy of structural parts reach ± 0.1mm, meeting the sealing requirements of battery packs;

-TA2 substrate is suitable for chemical microchannel reactor printing, and its corrosion resistance ensures that the substrate can be reused for 200+times, reducing the cost of consumables by 60% compared with stainless steel substrate.

4、 Quality assurance: whole process precise control system

1. raw material specialization management and control: special sponge titanium for 3D printing is used, with purity ≥ 99.8%, which is melted in vacuum consumable arc furnace ≥ 3 times to ensure uniform titanium ingot composition and hydrogen content ≤ 50ppm, so as to avoid porosity defects in the printed parts;

2. precision manufacturing process: the substrate forging adopts the "constant temperature forging+stress relief annealing" process, and the processing adopts the five axis linkage superfinishing grinder. The dimensional accuracy is monitored in real time to ensure that each substrate meets the printing requirements;

3. full inspection and verification: all pass the flatness test, roughness test, thermal conductivity test and mechanical property test, and the medical grade substrate additionally passes the biocompatibility and heavy metal content test;

4. customized surface treatment: it can provide customized surface treatment such as sandblasting, pickling, coating, etc., accurately adjust the substrate surface characteristics and improve the printing adaptability according to the printing material and process requirements.

Baoji Dingding titanium: the core supplier of 3D printing titanium alloy substrate

The company is located in Baoji high tech Zone, the "China Titanium Valley". It has two special production lines for 3D printing substrates, with an annual production capacity of 50000 pieces. Its products have passed ISO9001 quality management system and medical grade ISO 13485 certification. It has served 80+customers such as aerospace research institutes, high-end medical device manufacturers, 3D printing service providers, and has become the preferred partner of 3D printing titanium alloy substrate.

Technical advantages: ultra precision machining and printer precision matching ability

Complete qualifications: ISO9001, ISO 13485, medical device filing

Solution consultation: send 3D printer model and printing demand to 530975155@qq.com Free access to substrate adaptation scheme