Why can't mechanical processing of cast iron platforms replace manual scraping and grinding for a long time

JINGMI's manufacturing of LINGYU, which pursues precision, contact rigidity, and long-term stability, cannot be replaced by mechanical machining WANQUAN due to its advantages of micro precision, zero stress, flexible repair, and functional surface that cannot be replicated by machinery.

1. Micro bonding and contact accuracy of JIZHI (core)

- Manual: Through the "grinding method", the master visually judges the high point of the color coating, and performs point-to-point JINGZHUN scraping (a few microns per time). It can control 8-20 uniform contact points within an area of 25mm × 25mm, with a bonding rate of over 85%.

-Mechanical: Grinding/milling can only achieve macroscopic geometric accuracy (flatness, straightness), but microscopically it is a continuous ripple, which is actually a "point line contact" with large local gaps and poor rigidity.

Conclusion: 60% of the total rigidity of the machine tool comes from the contact surface, and only manual scraping can achieve "surface contact".

2. No stress, no thermal deformation (JINGMI component lifeline)

- Manual scraping: CHUNSHOUGONG, light cutting, almost no heat, no need for fixture clamping. WANQUAN does not generate internal stress and can slowly release the original stress of the casting.

-Mechanical processing: High speed cutting produces thermal deformation; Strong clamping can easily distort thin-walled/large parts; Cutting force will introduce new internal stress, which is prone to deformation and rebound in the later stage.

Conclusion: Large cast iron platforms, machine tool beds, and other easily deformable parts can only rely on manual BAOZHENG precision stability.

3. DUYIWUER's "oil storage surface" (NAIMO and smoothness key)

- Artificial scratches will form a uniform network of micro pits (oil bags):

-Continuously storing oil during exercise, forming a stable oil film

-Anti dry friction, anti crawling, significantly reducing wear and tear

-Mechanical grinding surface: too smooth, without oil storage structure, prone to boundary lubrication failure and biting.

4. Flexibility in assembly and repair (the Achilles' heel of the machine)

- Real time correction: If local errors are found after assembly, the master will perform targeted scraping and dynamically adjust the gap on the spot.

-Alien adaptation: Arc shaped, V-shaped, blind hole, large splicing surface, difficult to program mechanically, flexible manual processing.

-XIUFUZAISHENG: After equipment wear and tear, manual labor can achieve in-situ XIUFU accuracy, while machinery can only be scrapped and remade.

5. Accuracy retention (advantage of time dimension)

- Manual scraping has no stress, uniform contact, and dispersed force. Long term use results in slow wear and minimal accuracy degradation.

-Mechanical processing surface stress concentration, local point contact, easy crushing, and KUAISU misalignment.

Summary: Machine and Manual Localization

- Mechanical processing: GAOXIAOLV, macro precision, large batch

-Manual scraping and grinding: Super JINGMI, high rigidity, long service life, repair XIUFU

In the precise repair process of GAODUAN machine tools, JINGMI measuring tools, aerospace, and heavy equipment, manual scraping is still BAIYI's choice for BAOZHENGDNGGJI quality.