What is the difference between a 4 axis foam machining center and 3 axis foam engraving machine？

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What is the difference between a 4 axis foam machining center and 3 axis foam engraving machine？

The 4 axis foam machining center and the 3 axis foam engraving machine are both machines for processing casting foam molds. The two properties complement each other and can meet the needs of all casting foam engraving processing. Generally used in urban foam three-dimensional sculptures, square sculptures, automotive foam molds, motor shell molds, pump body valve molds, aviation wood molds and ship wood molds and other industries. Today let's take a look at the difference between a 4 axis foam machining center and a 3 axis foam engraving machine.

Mention the difference between the two, first we will talk about a function: RTCP, which is the tool compensation function everyone tastes. As long as a 4 axis foam machining center with RTCP function is set to a coordinate system, only one tool setting coordinate is needed. The three-axis foam engraving machine is a lot of trouble. The CNC system with RTCP function can be directly programmed with the tool tip, regardless of the center distance of the rotary axis. After applying the RTCP mode, programming 4 coordinate processing can directly target the tool tip rather than the center of the rotating spindle head, so programming will become simpler and more efficient.

Secondly, for the applicable industry, the two are also very different, because some products cannot be processed in place with the three-axis foam engraving machine. For example, blades of aero-engines and steam turbines, screw propellers for ships, and many shells and molds with special curved surfaces and complicated cavities and holes. The 4 axis foam machining center can perform three-dimensional and all-round machining and engraving, and it can complete the processing of free-form surfaces in one clamping.

Third, the use of 4 axis foam machining center can improve the machining accuracy, quality and efficiency of free-form surfaces in space. For example, when a three-axis foam engraving machine is used to process complex curved surfaces, ball-end milling cutters are often used. Ball-end milling cutters are formed by point contact, which has low cutting efficiency, and the tool / workpiece pose angle cannot be adjusted during processing. It is difficult to guarantee the best cutting point on the ball-end milling cutter (that is, the point with the highest linear speed on the ball head) for cutting, and the cutting point may fall on the center line of rotation where the linear speed of the ball-end tool is zero. With 4 axis foam machining center machine tool, because the tool / workpiece pose angle can be adjusted at any time, not only can this situation be avoided, but also the best cutting point of the tool can be used to cut at all times, or by wire Contact forming spiral end mills instead of point contact forming ball end mills. You can even mill by further optimizing the position angle of the tool / workpiece to achieve higher cutting speeds and cutting line widths. High cutting efficiency and better surface quality.

All in all, the 4 axis foam machining center is definitely much better than the three-axis foam engraving machine in terms of performance, and the price will be a bit higher. For the choice of the two, we must analyze the situation of the molds we are processing.