This product is from European customers .This product is used in the field of electronic products,it’s an instrument case. Material: 6082 T6. The difficulty of machining for this product lies in the case, which is only 1mm thick and easily deformed. After discussion by our technical team, we use aluminum die-casting drawing molds. Product length 55.5mm. It is a big difficulty to make the seal of the case top. We use CNC machining as per the product top drawing make Each size to 1mm thickness, and then we are welded by argon arc welding. Before welding degreasing treatment is required because the thin casing of this product encountered difficulties in the welding process is that the thin casing is easy burning through the product is easy to scrap. Aluminum material dissipates heat quickly, has a high melting point, and has a low material density, so welding is troublesome. Through our unremitting efforts to solve the problem of difficult product welding. Processing technology: the thin shell is not easy to be processed on the machine tool, and it is made by manual grinding after welding. Ensure product welding light leakage is not allowed securely. The length of the drawing is processed according to the picture, and the hole size is accurate at each hole position to remove burrs! Surface treatment: black hard oxidation, this product needs to be protected from the cavity port to the inner wall 12mm four sides Oxidation treatment, we use 3M high temperature resistant tape to protect it before oxidation. It needs to be cleaned up after oxidation. Check whether the appearance requirements are intact. Get praise from our customers. Responsibility for our production and processing, process and technology staff highly rated. Let us do better with high precision and high quality requirements.
Example . Cooling sleeve
1.Material: 45 steel. 2.The acute angle is blunt. 3.Heat treatment: tempering 235HBW. 4.All chamfering C1.
1.Part drawing analysis
1) The part material is 45 steel.
2) The reference is the center line of the outer circle of ϕ175h6.
1) The wall of this part is thin, and there are many annular grooves on the outer circle, which makes turning processing more difficult. Be sure to pay attention to clamping deformation.
2)) ϕ175 h6 outer circle has high requirements for dimensional accuracy and coaxiality, and the process arrangement is for grinding.
The machining process of the cooling sleeve (unit: mm)
|Part Name||Blank species||Material||Production type|
|Cooling sleeve||Forging||45 # steel||Small batch|
|Process||Work step||Process content||Equipment||Tools, measuring tools, auxiliary tools|
|20||Rough turning||Horizontal lathe|
|1||Use a self-centering chuck to clamp one end of the outer circle of the blank, align, clamp, and turn the end face until the surface becomes flat.||45° elbow turning tool|
|2||Turn the inner hole to ϕ150||Boring tool|
|3||Turn the outer circle to ϕ184||90° external turning tool|
|30||Heat treatment: tempering 235HBW||Box furnace|
|40||Fine turning||CNC lathe|
|1||Use self-centering chuck clamp ϕ175h6 outer circle, aligning, clamping, turning the end face to light||35° turning tool|
|2||Turning ϕ175h6 outer circle, leaving grinding allowance 0.50||35° turning tool|
|3||Turning 7. 5 ＋ 0.25 external circular groove, surface roughness Ra3. 2μm||Grooving knife|
|4||Turning 11 external circular grooves, surface roughness Ra3. 2μm||Grooving knife|
|5||Turning ϕ 174.7 ± 0. 05 Outer circle, surface roughness Ra3. 2μm||35° turning tool|
|6||Turning 2 × 18 external circular grooves, surface roughness Ra3. 2μm||Grooving knife|
|7||Turning 4 × 12. 8 cylindrical grooves, surface roughness Ra3. 2μm||Grooving knife|
|8||Turning ϕ159 inner hole, surface roughness Ra1. 6μm||35° turning tool|
|9||Turning inside and outside circles, chamfering is completed||35° turning tool|
|10||Turn around. Use the self-centering chuck clamp ϕ175h6 outer circle, align, clamp, and turn the left end face, leaving a grinding amount of 0. 10||35° turning tool|
|11||Turning the left end ϕ175h6 external circle, leaving a grinding allowance of 0.50||35° turning tool|
|12||Turning the left end 7. 5 + 0. 25 into a cylindrical groove, surface roughness Ra3. 2μm||Grooving knife|
|13||Turning the left end 11 external circular groove into, surface roughness Ra3. 2μm||Grooving knife|
|14||Turning ϕ157 inner hole, surface roughness Ra1. 6μm||35° turning tool|
|15||Turning inside and outside circles, chamfering is completed||35° turning tool|
|50||Drilling, milling, tapping||CNC machining center|
|1||Drill 4 × M6 threaded bottom holes to ϕ5||ϕ5 twist drill|
|2||Tap 4 × M6, threaded hole is completed||Thread tap M6|
|3||Milling 4 × ϕ8.2, the through hole is completed||Milling cutter ϕ 8|
|60||The left end surface is flat ground, surface roughness Ra3. 2μm||Surface Grinder|
|70||Grinding the outer circle: Install nut to press the mandrel to grind ϕ175h6 outer circle, rough surface||Cylindrical grinder|
|Degree Ra0. 8μm|
|80||Inspection: ϕ175h6 outer circle size and coaxiality||Inspection station|
|90||Oiling, packaging, warehousing||Warehouse|