ASSEMBLY
ASSEMBLY
Assembly is a highly skilled operation in which each parts manufactured
is fitted into their respective places considering the function.
Each part should be checked for fit or mating relation such as core and
cavities, guide bush and pillars etc .
FIXED HALF ASSEMBLY
After completing all machining
operation inspect main cavity and sub cavity insert thoroughly as per drawing
.And then check for the assembly designs and part list. Guide pillars (item
no10) are fitted in the respective holes with collar system, & Rest pins
(item no20) are placed inside the cavity plate (item no04). And then suit the
sub cavity insert in main insert than check for fixed half, fit the
Before assembling core side inspect main core ,sub insert, slider, slider
insert and guide rail and all spotting area. And than main core insert(item
no25)are placed inside the core holder plate housing (item no03)and another
core sub insert clamped in the core insert.
After
suiting core now suit the guide rail ,since there are two slider two
guiderail are used so two guide rail one
on each side is screw to core plate with M10x60mm and8mm dowel
it. And fit the Ball catchers from back side of core plate in calculated
position.
Inserting return pins and sleeve
in respective hole maintain H7g6 fit ejector assembly is completed; the return
pin heads are matched with ejector plate surface, the ejector pillars and
bushes are fitted, then back plate is fitted to the ejector plate with help of
M8X30mm screws. The pillars are oiled and the movement of ejector assembly is
checked. The core half is inverted and spacer on the core plate and bottom
plate is spaced on the spacers. Then both of them clamped together with M12 screws,
And core holder is clamped with bottom plate with screw of M8. The leveled feet
buttons are screw to ejector back plate to resist back pressure. After assembly
of both halves the mould was closed for blue matchi
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ReplyDeleteThis blog offers a fascinating historical perspective on the evolution of motor vehicle assembly in South Africa, particularly the pivotal role of Motor Assemblies Limited (MA) in shaping the industry. The transition from CKD (Completely Knocked Down) kits to localized production highlights the strategic importance of adaptable manufacturing processes—a theme that resonates with modern High-level Assembly Manufacturing (HLA) principles.
ReplyDeleteToday, HLA emphasizes integrating complex subsystems (mechanical, electrical, and software) into near-complete products, optimizing efficiency and reducing supply chain dependencies—much like MA’s early efforts to localize components like paint, glass, and trim 2. The blog’s discussion of MA’s labor-intensive yet scalable operations mirrors contemporary HLA challenges, where balancing customization with volume production remains critical 6.
For industries like automotive, HLA could further enhance legacy systems by incorporating modular design and advanced testing protocols—key tenets of HLA used in aerospace and medical device manufacturing today 36. Would love to see a follow-up exploring how HLA methodologies might modernize traditional assembly lines while preserving their historical ingenuity.
Keep up the insightful work!
Fantastic write-up — you covered the essentials and the real-world examples were especially useful. For readers looking to dive deeper into turnkey production and precision assembly, I’ve found High-level Assembly Manufacturing offers a great overview of modern assembly strategies, quality controls, and service options that complement this topic.
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